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Finding the Third Proportional to 11,682 and 15,738.75

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Solution

The third proportional to 11,682 and 15,738.75 is: 21,204.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682 : 15,738.75 = 15,738.75 : x
  2. Step 2: Convert to fraction form
    11,682/15,738.75 = 15,738.75/x
  3. Step 3: Cross multiply
    11,682x = 15,738.75 × 15,738.75
  4. Step 4: Simplify right side
    11,682x = 247,708,251.56
  5. Step 5: Solve for x
    x = 247,708,251.56/11,682
  6. Step 6: Final answer
    x = 21,204.27

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.