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Finding the Third Proportional to 12,223 and 18,331

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Solution

The third proportional to 12,223 and 18,331 is: 27,491.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223 : 18,331 = 18,331 : x
  2. Step 2: Convert to fraction form
    12,223/18,331 = 18,331/x
  3. Step 3: Cross multiply
    12,223x = 18,331 × 18,331
  4. Step 4: Simplify right side
    12,223x = 336,025,561
  5. Step 5: Solve for x
    x = 336,025,561/12,223
  6. Step 6: Final answer
    x = 27,491.25

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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.