Finding the Fourth Proportional to 11.24, 15.49 and 10.09
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Solution
The fourth proportional to 11.24, 15.49 and 10.09 is: 13.91
Step by Step Solution
- Step 1: Write the proportion equation
11.24 : 15.49 = 10.09 : x - Step 2: Convert to fraction form
11.24/15.49 = 10.09/x - Step 3: Cross multiply
11.24x = 15.49 × 10.09 - Step 4: Simplify right side
11.24x = 156.33 - Step 5: Solve for x
x = 156.33/11.24 - Step 6: Final answer
x = 13.91
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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.