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Finding the Third Proportional to 9,432 and 11,880

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Solution

The third proportional to 9,432 and 11,880 is: 14,963.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,432 : 11,880 = 11,880 : x
  2. Step 2: Convert to fraction form
    9,432/11,880 = 11,880/x
  3. Step 3: Cross multiply
    9,432x = 11,880 × 11,880
  4. Step 4: Simplify right side
    9,432x = 141,134,400
  5. Step 5: Solve for x
    x = 141,134,400/9,432
  6. Step 6: Final answer
    x = 14,963.36

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Why These Related Problems?

These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.