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How it works
If quantities are directly proportional, multiply B by C and divide by A.
KEY FORMULAA : B = C : X → X = B × C / A.
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Worked example
4 items cost 12. Then 7 items cost (12 × 7) / 4 = 21.
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Before using this result
Only valid for direct proportionality, not inverse relationships or nonlinear pricing.
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Informational simulation. Verify real-world conditions before making decisions.
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Frequently asked questions
Does it work for every relationship? +
No. First verify that the relationship is direct and linear.