Ratio & Proportion Calculator
Solve missing proportion terms A:B = C:X and simplify ratios.
Input Parameters
Calculation Results
Formula & How Ratio & Proportion Calculator Works
In a proportion A:B = C:X, the product of the means equals the product of the extremes (A × X = B × C).
- Enter Term A: Input your target parameter value.
- Enter Term B: Input your target parameter value.
- Enter Term C: Input your target parameter value.
- Apply Formula: Calculate using
X = (B × C) / A. - Review Results: View exact computed answers, metrics, and worked mathematical proofs.
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Frequently Asked Questions (FAQs)
What is a ratio?
A ratio compares the relative sizes of two or more values.
Authoritative Standards & Verified Reference Citations
Calculations and mathematical logic on this page are grounded in published statutory rules, regulatory standards, and official government data published by the following bodies:
Open government data, scientific datums, and public sector mathematical reference datasets.
Australia's national authority on physical, chemical, and biological metric measurement standards.
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