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Finding the Third Proportional to 8,702 and 13,175

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Solution

The third proportional to 8,702 and 13,175 is: 19,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702 : 13,175 = 13,175 : x
  2. Step 2: Convert to fraction form
    8,702/13,175 = 13,175/x
  3. Step 3: Cross multiply
    8,702x = 13,175 × 13,175
  4. Step 4: Simplify right side
    8,702x = 173,580,625
  5. Step 5: Solve for x
    x = 173,580,625/8,702
  6. Step 6: Final answer
    x = 19,947.21

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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.