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Finding the Third Proportional to 12,385.13 and 18,580.22

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Solution

The third proportional to 12,385.13 and 18,580.22 is: 27,874.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385.13 : 18,580.22 = 18,580.22 : x
  2. Step 2: Convert to fraction form
    12,385.13/18,580.22 = 18,580.22/x
  3. Step 3: Cross multiply
    12,385.13x = 18,580.22 × 18,580.22
  4. Step 4: Simplify right side
    12,385.13x = 345,224,528.80
  5. Step 5: Solve for x
    x = 345,224,528.80/12,385.13
  6. Step 6: Final answer
    x = 27,874.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.