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Finding the Third Proportional to 11,625 and 18,261

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Solution

The third proportional to 11,625 and 18,261 is: 28,685.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,625 : 18,261 = 18,261 : x
  2. Step 2: Convert to fraction form
    11,625/18,261 = 18,261/x
  3. Step 3: Cross multiply
    11,625x = 18,261 × 18,261
  4. Step 4: Simplify right side
    11,625x = 333,464,121
  5. Step 5: Solve for x
    x = 333,464,121/11,625
  6. Step 6: Final answer
    x = 28,685.09

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.