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Finding the Third Proportional to 8,484 and 12,472

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Solution

The third proportional to 8,484 and 12,472 is: 18,334.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484 : 12,472 = 12,472 : x
  2. Step 2: Convert to fraction form
    8,484/12,472 = 12,472/x
  3. Step 3: Cross multiply
    8,484x = 12,472 × 12,472
  4. Step 4: Simplify right side
    8,484x = 155,550,784
  5. Step 5: Solve for x
    x = 155,550,784/8,484
  6. Step 6: Final answer
    x = 18,334.60

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.