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Finding the Third Proportional to 8,938.69 and 13,947.19

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Solution

The third proportional to 8,938.69 and 13,947.19 is: 21,762.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.69 : 13,947.19 = 13,947.19 : x
  2. Step 2: Convert to fraction form
    8,938.69/13,947.19 = 13,947.19/x
  3. Step 3: Cross multiply
    8,938.69x = 13,947.19 × 13,947.19
  4. Step 4: Simplify right side
    8,938.69x = 194,524,039.16
  5. Step 5: Solve for x
    x = 194,524,039.16/8,938.69
  6. Step 6: Final answer
    x = 21,762.04

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.