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Finding the Third Proportional to 8,431 and 12,252

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Solution

The third proportional to 8,431 and 12,252 is: 17,804.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431 : 12,252 = 12,252 : x
  2. Step 2: Convert to fraction form
    8,431/12,252 = 12,252/x
  3. Step 3: Cross multiply
    8,431x = 12,252 × 12,252
  4. Step 4: Simplify right side
    8,431x = 150,111,504
  5. Step 5: Solve for x
    x = 150,111,504/8,431
  6. Step 6: Final answer
    x = 17,804.71

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.