Home / 8,189.20-12,283.80-3,258.52

Finding the Fourth Proportional to 8,189.20, 12,283.80 and 3,258.52

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Solution

The fourth proportional to 8,189.20, 12,283.80 and 3,258.52 is: 4,887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.20 : 12,283.80 = 3,258.52 : x
  2. Step 2: Convert to fraction form
    8,189.20/12,283.80 = 3,258.52/x
  3. Step 3: Cross multiply
    8,189.20x = 12,283.80 × 3,258.52
  4. Step 4: Simplify right side
    8,189.20x = 40,027,007.98
  5. Step 5: Solve for x
    x = 40,027,007.98/8,189.20
  6. Step 6: Final answer
    x = 4,887.78

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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.