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Finding the Third Proportional to 8,119 and 12,266

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Solution

The third proportional to 8,119 and 12,266 is: 18,531.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119 : 12,266 = 12,266 : x
  2. Step 2: Convert to fraction form
    8,119/12,266 = 12,266/x
  3. Step 3: Cross multiply
    8,119x = 12,266 × 12,266
  4. Step 4: Simplify right side
    8,119x = 150,454,756
  5. Step 5: Solve for x
    x = 150,454,756/8,119
  6. Step 6: Final answer
    x = 18,531.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.