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Finding the Third Proportional to 6,781.50 and 9,456.75

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Solution

The third proportional to 6,781.50 and 9,456.75 is: 13,187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.50 : 9,456.75 = 9,456.75 : x
  2. Step 2: Convert to fraction form
    6,781.50/9,456.75 = 9,456.75/x
  3. Step 3: Cross multiply
    6,781.50x = 9,456.75 × 9,456.75
  4. Step 4: Simplify right side
    6,781.50x = 89,430,120.56
  5. Step 5: Solve for x
    x = 89,430,120.56/6,781.50
  6. Step 6: Final answer
    x = 13,187.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.