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Finding the Third Proportional to 8,291 and 12,274

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Solution

The third proportional to 8,291 and 12,274 is: 18,170.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291 : 12,274 = 12,274 : x
  2. Step 2: Convert to fraction form
    8,291/12,274 = 12,274/x
  3. Step 3: Cross multiply
    8,291x = 12,274 × 12,274
  4. Step 4: Simplify right side
    8,291x = 150,651,076
  5. Step 5: Solve for x
    x = 150,651,076/8,291
  6. Step 6: Final answer
    x = 18,170.43

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.