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Finding the Third Proportional to 12,361 and 18,649

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Solution

The third proportional to 12,361 and 18,649 is: 28,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361 : 18,649 = 18,649 : x
  2. Step 2: Convert to fraction form
    12,361/18,649 = 18,649/x
  3. Step 3: Cross multiply
    12,361x = 18,649 × 18,649
  4. Step 4: Simplify right side
    12,361x = 347,785,201
  5. Step 5: Solve for x
    x = 347,785,201/12,361
  6. Step 6: Final answer
    x = 28,135.68

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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.