Home / 8,785.20-13,177.82-3,591.08

Finding the Fourth Proportional to 8,785.20, 13,177.82 and 3,591.08

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Solution

The fourth proportional to 8,785.20, 13,177.82 and 3,591.08 is: 5,386.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.20 : 13,177.82 = 3,591.08 : x
  2. Step 2: Convert to fraction form
    8,785.20/13,177.82 = 3,591.08/x
  3. Step 3: Cross multiply
    8,785.20x = 13,177.82 × 3,591.08
  4. Step 4: Simplify right side
    8,785.20x = 47,322,572.16
  5. Step 5: Solve for x
    x = 47,322,572.16/8,785.20
  6. Step 6: Final answer
    x = 5,386.62

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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.