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Finding the Third Proportional to 8,889.38 and 13,390.13

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Solution

The third proportional to 8,889.38 and 13,390.13 is: 20,169.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.38 : 13,390.13 = 13,390.13 : x
  2. Step 2: Convert to fraction form
    8,889.38/13,390.13 = 13,390.13/x
  3. Step 3: Cross multiply
    8,889.38x = 13,390.13 × 13,390.13
  4. Step 4: Simplify right side
    8,889.38x = 179,295,447.52
  5. Step 5: Solve for x
    x = 179,295,447.52/8,889.38
  6. Step 6: Final answer
    x = 20,169.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.