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Finding the Third Proportional to 9,740 and 18,744

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Solution

The third proportional to 9,740 and 18,744 is: 36,071.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,740 : 18,744 = 18,744 : x
  2. Step 2: Convert to fraction form
    9,740/18,744 = 18,744/x
  3. Step 3: Cross multiply
    9,740x = 18,744 × 18,744
  4. Step 4: Simplify right side
    9,740x = 351,337,536
  5. Step 5: Solve for x
    x = 351,337,536/9,740
  6. Step 6: Final answer
    x = 36,071.62

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Why These Related Problems?

These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.