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Finding the Third Proportional to 11,857.50 and 18,099

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Solution

The third proportional to 11,857.50 and 18,099 is: 27,625.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,857.50 : 18,099 = 18,099 : x
  2. Step 2: Convert to fraction form
    11,857.50/18,099 = 18,099/x
  3. Step 3: Cross multiply
    11,857.50x = 18,099 × 18,099
  4. Step 4: Simplify right side
    11,857.50x = 327,573,801
  5. Step 5: Solve for x
    x = 327,573,801/11,857.50
  6. Step 6: Final answer
    x = 27,625.87

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.