Home / 8,250.77-12,380.41-5,479.36

Finding the Fourth Proportional to 8,250.77, 12,380.41 and 5,479.36

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Solution

The fourth proportional to 8,250.77, 12,380.41 and 5,479.36 is: 8,221.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,250.77 : 12,380.41 = 5,479.36 : x
  2. Step 2: Convert to fraction form
    8,250.77/12,380.41 = 5,479.36/x
  3. Step 3: Cross multiply
    8,250.77x = 12,380.41 × 5,479.36
  4. Step 4: Simplify right side
    8,250.77x = 67,836,723.34
  5. Step 5: Solve for x
    x = 67,836,723.34/8,250.77
  6. Step 6: Final answer
    x = 8,221.87

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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.