Home / 11,451.68-17,175.92-3,129.69

Finding the Fourth Proportional to 11,451.68, 17,175.92 and 3,129.69

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Solution

The fourth proportional to 11,451.68, 17,175.92 and 3,129.69 is: 4,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.68 : 17,175.92 = 3,129.69 : x
  2. Step 2: Convert to fraction form
    11,451.68/17,175.92 = 3,129.69/x
  3. Step 3: Cross multiply
    11,451.68x = 17,175.92 × 3,129.69
  4. Step 4: Simplify right side
    11,451.68x = 53,755,305.06
  5. Step 5: Solve for x
    x = 53,755,305.06/11,451.68
  6. Step 6: Final answer
    x = 4,694.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.