Home / 8,785.71-13,180.68-3,591.59

Finding the Fourth Proportional to 8,785.71, 13,180.68 and 3,591.59

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Solution

The fourth proportional to 8,785.71, 13,180.68 and 3,591.59 is: 5,388.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.71 : 13,180.68 = 3,591.59 : x
  2. Step 2: Convert to fraction form
    8,785.71/13,180.68 = 3,591.59/x
  3. Step 3: Cross multiply
    8,785.71x = 13,180.68 × 3,591.59
  4. Step 4: Simplify right side
    8,785.71x = 47,339,532.58
  5. Step 5: Solve for x
    x = 47,339,532.58/8,785.71
  6. Step 6: Final answer
    x = 5,388.24

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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.