Finding the Fourth Proportional to 11.14, 15.38 and 10.08
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Solution
The fourth proportional to 11.14, 15.38 and 10.08 is: 13.92
Step by Step Solution
- Step 1: Write the proportion equation
11.14 : 15.38 = 10.08 : x - Step 2: Convert to fraction form
11.14/15.38 = 10.08/x - Step 3: Cross multiply
11.14x = 15.38 × 10.08 - Step 4: Simplify right side
11.14x = 155.03 - Step 5: Solve for x
x = 155.03/11.14 - Step 6: Final answer
x = 13.92
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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.