Finding the Third Proportional to 11,514 and 15,138.75
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Solution
The third proportional to 11,514 and 15,138.75 is: 19,904.62
Step by Step Solution
- Step 1: Write the proportion equation
11,514 : 15,138.75 = 15,138.75 : x - Step 2: Convert to fraction form
11,514/15,138.75 = 15,138.75/x - Step 3: Cross multiply
11,514x = 15,138.75 × 15,138.75 - Step 4: Simplify right side
11,514x = 229,181,751.56 - Step 5: Solve for x
x = 229,181,751.56/11,514 - Step 6: Final answer
x = 19,904.62
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Why These Related Problems?
These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.