Home / 8,785.22-13,179.05-3,589.88

Finding the Fourth Proportional to 8,785.22, 13,179.05 and 3,589.88

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Solution

The fourth proportional to 8,785.22, 13,179.05 and 3,589.88 is: 5,385.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.22 : 13,179.05 = 3,589.88 : x
  2. Step 2: Convert to fraction form
    8,785.22/13,179.05 = 3,589.88/x
  3. Step 3: Cross multiply
    8,785.22x = 13,179.05 × 3,589.88
  4. Step 4: Simplify right side
    8,785.22x = 47,311,124.17
  5. Step 5: Solve for x
    x = 47,311,124.17/8,785.22
  6. Step 6: Final answer
    x = 5,385.31

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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.