Finding the Third Proportional to 9,139 and 13,775.75
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Solution
The third proportional to 9,139 and 13,775.75 is: 20,764.99
Step by Step Solution
- Step 1: Write the proportion equation
9,139 : 13,775.75 = 13,775.75 : x - Step 2: Convert to fraction form
9,139/13,775.75 = 13,775.75/x - Step 3: Cross multiply
9,139x = 13,775.75 × 13,775.75 - Step 4: Simplify right side
9,139x = 189,771,288.06 - Step 5: Solve for x
x = 189,771,288.06/9,139 - Step 6: Final answer
x = 20,764.99
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.