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Finding the Third Proportional to 8,759 and 12,319

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Solution

The third proportional to 8,759 and 12,319 is: 17,325.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759 : 12,319 = 12,319 : x
  2. Step 2: Convert to fraction form
    8,759/12,319 = 12,319/x
  3. Step 3: Cross multiply
    8,759x = 12,319 × 12,319
  4. Step 4: Simplify right side
    8,759x = 151,757,761
  5. Step 5: Solve for x
    x = 151,757,761/8,759
  6. Step 6: Final answer
    x = 17,325.92

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.