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Finding the Third Proportional to 13,672 and 18,860

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Solution

The third proportional to 13,672 and 18,860 is: 26,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672 : 18,860 = 18,860 : x
  2. Step 2: Convert to fraction form
    13,672/18,860 = 18,860/x
  3. Step 3: Cross multiply
    13,672x = 18,860 × 18,860
  4. Step 4: Simplify right side
    13,672x = 355,699,600
  5. Step 5: Solve for x
    x = 355,699,600/13,672
  6. Step 6: Final answer
    x = 26,016.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.