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Finding the Third Proportional to 8,550 and 12,791

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Solution

The third proportional to 8,550 and 12,791 is: 19,135.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,550 : 12,791 = 12,791 : x
  2. Step 2: Convert to fraction form
    8,550/12,791 = 12,791/x
  3. Step 3: Cross multiply
    8,550x = 12,791 × 12,791
  4. Step 4: Simplify right side
    8,550x = 163,609,681
  5. Step 5: Solve for x
    x = 163,609,681/8,550
  6. Step 6: Final answer
    x = 19,135.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.