Finding the Fourth Proportional to 11.05, 15.28 and 10.62
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Solution
The fourth proportional to 11.05, 15.28 and 10.62 is: 14.69
Step by Step Solution
- Step 1: Write the proportion equation
11.05 : 15.28 = 10.62 : x - Step 2: Convert to fraction form
11.05/15.28 = 10.62/x - Step 3: Cross multiply
11.05x = 15.28 × 10.62 - Step 4: Simplify right side
11.05x = 162.25 - Step 5: Solve for x
x = 162.25/11.05 - Step 6: Final answer
x = 14.69
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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.