Home / 9,131.20-13,677.36-5,657.92

Finding the Fourth Proportional to 9,131.20, 13,677.36 and 5,657.92

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Solution

The fourth proportional to 9,131.20, 13,677.36 and 5,657.92 is: 8,474.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.20 : 13,677.36 = 5,657.92 : x
  2. Step 2: Convert to fraction form
    9,131.20/13,677.36 = 5,657.92/x
  3. Step 3: Cross multiply
    9,131.20x = 13,677.36 × 5,657.92
  4. Step 4: Simplify right side
    9,131.20x = 77,385,408.69
  5. Step 5: Solve for x
    x = 77,385,408.69/9,131.20
  6. Step 6: Final answer
    x = 8,474.83

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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.