Finding the Fourth Proportional to 11.52, 15.88 and 10.99
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Solution
The fourth proportional to 11.52, 15.88 and 10.99 is: 15.14
Step by Step Solution
- Step 1: Write the proportion equation
11.52 : 15.88 = 10.99 : x - Step 2: Convert to fraction form
11.52/15.88 = 10.99/x - Step 3: Cross multiply
11.52x = 15.88 × 10.99 - Step 4: Simplify right side
11.52x = 174.39 - Step 5: Solve for x
x = 174.39/11.52 - Step 6: Final answer
x = 15.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.