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Finding the Third Proportional to 13,087.13 and 18,691.88

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Solution

The third proportional to 13,087.13 and 18,691.88 is: 26,696.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.13 : 18,691.88 = 18,691.88 : x
  2. Step 2: Convert to fraction form
    13,087.13/18,691.88 = 18,691.88/x
  3. Step 3: Cross multiply
    13,087.13x = 18,691.88 × 18,691.88
  4. Step 4: Simplify right side
    13,087.13x = 349,386,191.02
  5. Step 5: Solve for x
    x = 349,386,191.02/13,087.13
  6. Step 6: Final answer
    x = 26,696.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.