Home / 16,781.20-25,171.69-5,695.70

Finding the Fourth Proportional to 16,781.20, 25,171.69 and 5,695.70

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Solution

The fourth proportional to 16,781.20, 25,171.69 and 5,695.70 is: 8,543.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.20 : 25,171.69 = 5,695.70 : x
  2. Step 2: Convert to fraction form
    16,781.20/25,171.69 = 5,695.70/x
  3. Step 3: Cross multiply
    16,781.20x = 25,171.69 × 5,695.70
  4. Step 4: Simplify right side
    16,781.20x = 143,370,268.87
  5. Step 5: Solve for x
    x = 143,370,268.87/16,781.20
  6. Step 6: Final answer
    x = 8,543.51

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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.