Home / 18,789.60-28,184.85-6,310.04

Finding the Fourth Proportional to 18,789.60, 28,184.85 and 6,310.04

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Solution

The fourth proportional to 18,789.60, 28,184.85 and 6,310.04 is: 9,465.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.60 : 28,184.85 = 6,310.04 : x
  2. Step 2: Convert to fraction form
    18,789.60/28,184.85 = 6,310.04/x
  3. Step 3: Cross multiply
    18,789.60x = 28,184.85 × 6,310.04
  4. Step 4: Simplify right side
    18,789.60x = 177,847,389.97
  5. Step 5: Solve for x
    x = 177,847,389.97/18,789.60
  6. Step 6: Final answer
    x = 9,465.20

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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.