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Finding the Third Proportional to 12,872 and 17,175

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Solution

The third proportional to 12,872 and 17,175 is: 22,916.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872 : 17,175 = 17,175 : x
  2. Step 2: Convert to fraction form
    12,872/17,175 = 17,175/x
  3. Step 3: Cross multiply
    12,872x = 17,175 × 17,175
  4. Step 4: Simplify right side
    12,872x = 294,980,625
  5. Step 5: Solve for x
    x = 294,980,625/12,872
  6. Step 6: Final answer
    x = 22,916.46

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.