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Finding the Third Proportional to 3,396 and 6,744

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Solution

The third proportional to 3,396 and 6,744 is: 13,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396 : 6,744 = 6,744 : x
  2. Step 2: Convert to fraction form
    3,396/6,744 = 6,744/x
  3. Step 3: Cross multiply
    3,396x = 6,744 × 6,744
  4. Step 4: Simplify right side
    3,396x = 45,481,536
  5. Step 5: Solve for x
    x = 45,481,536/3,396
  6. Step 6: Final answer
    x = 13,392.68

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Why These Related Problems?

These problems maintain the same ratio (1.99) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.