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Finding the Third Proportional to 8,137.13 and 12,269.81

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Solution

The third proportional to 8,137.13 and 12,269.81 is: 18,501.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.13 : 12,269.81 = 12,269.81 : x
  2. Step 2: Convert to fraction form
    8,137.13/12,269.81 = 12,269.81/x
  3. Step 3: Cross multiply
    8,137.13x = 12,269.81 × 12,269.81
  4. Step 4: Simplify right side
    8,137.13x = 150,548,298.79
  5. Step 5: Solve for x
    x = 150,548,298.79/8,137.13
  6. Step 6: Final answer
    x = 18,501.41

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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.