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Finding the Third Proportional to 8,412 and 12,566

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Solution

The third proportional to 8,412 and 12,566 is: 18,771.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412 : 12,566 = 12,566 : x
  2. Step 2: Convert to fraction form
    8,412/12,566 = 12,566/x
  3. Step 3: Cross multiply
    8,412x = 12,566 × 12,566
  4. Step 4: Simplify right side
    8,412x = 157,904,356
  5. Step 5: Solve for x
    x = 157,904,356/8,412
  6. Step 6: Final answer
    x = 18,771.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.