Home / 8,785.68-13,178.52-3,591.54

Finding the Fourth Proportional to 8,785.68, 13,178.52 and 3,591.54

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Solution

The fourth proportional to 8,785.68, 13,178.52 and 3,591.54 is: 5,387.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.68 : 13,178.52 = 3,591.54 : x
  2. Step 2: Convert to fraction form
    8,785.68/13,178.52 = 3,591.54/x
  3. Step 3: Cross multiply
    8,785.68x = 13,178.52 × 3,591.54
  4. Step 4: Simplify right side
    8,785.68x = 47,331,181.72
  5. Step 5: Solve for x
    x = 47,331,181.72/8,785.68
  6. Step 6: Final answer
    x = 5,387.31

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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.