Home / 8,979.82-13,471.54-3,785.68

Finding the Fourth Proportional to 8,979.82, 13,471.54 and 3,785.68

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Solution

The fourth proportional to 8,979.82, 13,471.54 and 3,785.68 is: 5,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.82 : 13,471.54 = 3,785.68 : x
  2. Step 2: Convert to fraction form
    8,979.82/13,471.54 = 3,785.68/x
  3. Step 3: Cross multiply
    8,979.82x = 13,471.54 × 3,785.68
  4. Step 4: Simplify right side
    8,979.82x = 50,998,939.55
  5. Step 5: Solve for x
    x = 50,998,939.55/8,979.82
  6. Step 6: Final answer
    x = 5,679.28

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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.