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Finding the Third Proportional to 8,713.50 and 13,331.75

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Solution

The third proportional to 8,713.50 and 13,331.75 is: 20,397.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.50 : 13,331.75 = 13,331.75 : x
  2. Step 2: Convert to fraction form
    8,713.50/13,331.75 = 13,331.75/x
  3. Step 3: Cross multiply
    8,713.50x = 13,331.75 × 13,331.75
  4. Step 4: Simplify right side
    8,713.50x = 177,735,558.06
  5. Step 5: Solve for x
    x = 177,735,558.06/8,713.50
  6. Step 6: Final answer
    x = 20,397.72

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.