Constant of proportionality (k)

Key term for OCR GCSE Mathematics, used in Proportionality.

Definition

The fixed multiplier $k$ that relates two proportional quantities in an equation, representing the constant ratio between them.

Exam Context

Constant of proportionality (k) appears in OCR GCSE Mathematics revision content for Ratio, Proportion and Rates Of Change, especially Proportionality and Direct Proportion.

Ratio, Proportion and Rates Of Change Proportionality Direct Proportion

Found in Revision Notes

Ratio, Proportion and Rates Of Change

Direct Proportion with Powers and Roots

Proportionality • Direct Proportion

Revise note

Related Key Terms

Direct proportion Non-linear direct proportion Origin Percentage increase

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