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Finding the Third Proportional to 12,480.47 and 18,850.64

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Solution

The third proportional to 12,480.47 and 18,850.64 is: 28,472.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.47 : 18,850.64 = 18,850.64 : x
  2. Step 2: Convert to fraction form
    12,480.47/18,850.64 = 18,850.64/x
  3. Step 3: Cross multiply
    12,480.47x = 18,850.64 × 18,850.64
  4. Step 4: Simplify right side
    12,480.47x = 355,346,651.97
  5. Step 5: Solve for x
    x = 355,346,651.97/12,480.47
  6. Step 6: Final answer
    x = 28,472.22

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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.