Finding the Fourth Proportional to 10.71, 15.99 and 10.52
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Solution
The fourth proportional to 10.71, 15.99 and 10.52 is: 15.70
Step by Step Solution
- Step 1: Write the proportion equation
10.71 : 15.99 = 10.52 : x - Step 2: Convert to fraction form
10.71/15.99 = 10.52/x - Step 3: Cross multiply
10.71x = 15.99 × 10.52 - Step 4: Simplify right side
10.71x = 168.13 - Step 5: Solve for x
x = 168.13/10.71 - Step 6: Final answer
x = 15.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.