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Finding the Third Proportional to 12,173.73 and 18,212.19

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Solution

The third proportional to 12,173.73 and 18,212.19 is: 27,245.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.73 : 18,212.19 = 18,212.19 : x
  2. Step 2: Convert to fraction form
    12,173.73/18,212.19 = 18,212.19/x
  3. Step 3: Cross multiply
    12,173.73x = 18,212.19 × 18,212.19
  4. Step 4: Simplify right side
    12,173.73x = 331,683,702.39
  5. Step 5: Solve for x
    x = 331,683,702.39/12,173.73
  6. Step 6: Final answer
    x = 27,245.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.