proportionality

In mathematics, two variables are proportional if a change in one is always accompanied by a change in the other, and if the changes are always related by use of a constant

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Also known as linearity · proportional to

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In mathematics, two sequences of numbers, often experimental data, are proportional or directly proportional if their corresponding elements have a constant ratio. The ratio is called coefficient of proportionality and its reciprocal is known as constant of normalization. Two sequences are inversely proportional if corresponding elements have a constant product.

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18 statements · 22% with external sources · numbers in brackets are citations

Notation: double colon
∝
~
Different from: proportional representation
Depicted by: ∷
Opposite of: inverse proportionality

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12 identifiers linking proportionality across the web's reference databases

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Source last edited October 2, 2026. AIDB refreshes this page daily.

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AIDB. (2026). proportionality (Q51379). Retrieved from https://aidb.si/e/proportionality-Q51379