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Finding the Third Proportional to 8,460 and 12,292

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Solution

The third proportional to 8,460 and 12,292 is: 17,859.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460 : 12,292 = 12,292 : x
  2. Step 2: Convert to fraction form
    8,460/12,292 = 12,292/x
  3. Step 3: Cross multiply
    8,460x = 12,292 × 12,292
  4. Step 4: Simplify right side
    8,460x = 151,093,264
  5. Step 5: Solve for x
    x = 151,093,264/8,460
  6. Step 6: Final answer
    x = 17,859.72

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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.