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Finding the Third Proportional to 7,540 and 11,505

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Solution

The third proportional to 7,540 and 11,505 is: 17,555.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540 : 11,505 = 11,505 : x
  2. Step 2: Convert to fraction form
    7,540/11,505 = 11,505/x
  3. Step 3: Cross multiply
    7,540x = 11,505 × 11,505
  4. Step 4: Simplify right side
    7,540x = 132,365,025
  5. Step 5: Solve for x
    x = 132,365,025/7,540
  6. Step 6: Final answer
    x = 17,555.04

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.