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Finding the Third Proportional to 6,843 and 7,743

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Solution

The third proportional to 6,843 and 7,743 is: 8,761.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,843 : 7,743 = 7,743 : x
  2. Step 2: Convert to fraction form
    6,843/7,743 = 7,743/x
  3. Step 3: Cross multiply
    6,843x = 7,743 × 7,743
  4. Step 4: Simplify right side
    6,843x = 59,954,049
  5. Step 5: Solve for x
    x = 59,954,049/6,843
  6. Step 6: Final answer
    x = 8,761.37

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.