Home / 11,425.42-17,131.20-7,471.90

Finding the Fourth Proportional to 11,425.42, 17,131.20 and 7,471.90

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Solution

The fourth proportional to 11,425.42, 17,131.20 and 7,471.90 is: 11,203.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.42 : 17,131.20 = 7,471.90 : x
  2. Step 2: Convert to fraction form
    11,425.42/17,131.20 = 7,471.90/x
  3. Step 3: Cross multiply
    11,425.42x = 17,131.20 × 7,471.90
  4. Step 4: Simplify right side
    11,425.42x = 128,002,648.70
  5. Step 5: Solve for x
    x = 128,002,648.70/11,425.42
  6. Step 6: Final answer
    x = 11,203.33

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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.