Home / 8,785.52-13,178.29-3,591.39

Finding the Fourth Proportional to 8,785.52, 13,178.29 and 3,591.39

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Solution

The fourth proportional to 8,785.52, 13,178.29 and 3,591.39 is: 5,387.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.52 : 13,178.29 = 3,591.39 : x
  2. Step 2: Convert to fraction form
    8,785.52/13,178.29 = 3,591.39/x
  3. Step 3: Cross multiply
    8,785.52x = 13,178.29 × 3,591.39
  4. Step 4: Simplify right side
    8,785.52x = 47,328,360.97
  5. Step 5: Solve for x
    x = 47,328,360.97/8,785.52
  6. Step 6: Final answer
    x = 5,387.09

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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.