Finding the Fourth Proportional to 11.26, 15.48 and 10.05
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Solution
The fourth proportional to 11.26, 15.48 and 10.05 is: 13.82
Step by Step Solution
- Step 1: Write the proportion equation
11.26 : 15.48 = 10.05 : x - Step 2: Convert to fraction form
11.26/15.48 = 10.05/x - Step 3: Cross multiply
11.26x = 15.48 × 10.05 - Step 4: Simplify right side
11.26x = 155.57 - Step 5: Solve for x
x = 155.57/11.26 - Step 6: Final answer
x = 13.82
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.