Home / 8,118.60-12,168.11-3,952.37

Finding the Fourth Proportional to 8,118.60, 12,168.11 and 3,952.37

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Solution

The fourth proportional to 8,118.60, 12,168.11 and 3,952.37 is: 5,923.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.60 : 12,168.11 = 3,952.37 : x
  2. Step 2: Convert to fraction form
    8,118.60/12,168.11 = 3,952.37/x
  3. Step 3: Cross multiply
    8,118.60x = 12,168.11 × 3,952.37
  4. Step 4: Simplify right side
    8,118.60x = 48,092,872.92
  5. Step 5: Solve for x
    x = 48,092,872.92/8,118.60
  6. Step 6: Final answer
    x = 5,923.79

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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.