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Finding the Third Proportional to 8,562 and 12,509

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Solution

The third proportional to 8,562 and 12,509 is: 18,275.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,562 : 12,509 = 12,509 : x
  2. Step 2: Convert to fraction form
    8,562/12,509 = 12,509/x
  3. Step 3: Cross multiply
    8,562x = 12,509 × 12,509
  4. Step 4: Simplify right side
    8,562x = 156,475,081
  5. Step 5: Solve for x
    x = 156,475,081/8,562
  6. Step 6: Final answer
    x = 18,275.53

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.