How to Calculate Cross Multiply
What is Cross Multiply?
A cross-multiplication calculator solves proportions of the form a/b = c/d by computing a×d = b×c. Cross-multiplication is a fundamental technique for solving equations involving fractions, finding equivalent ratios, scaling recipes, and map distance calculations.
Step-by-Step Guide
- 1a/b = c/d cross: a*d = b*c
- 2Solve for unknown
- 3Verify equality
Worked Examples
Input
Enter the required values
Result
Result computed by the formula
Common Mistakes to Avoid
- ✕Inaccurate inputs
- ✕Outdated assumptions
Frequently Asked Questions
What does this calculator do?
Enter your data
How do I use this calculator?
System calculates
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