Home / 8,081.20-12,120.42-2,236.44

Finding the Fourth Proportional to 8,081.20, 12,120.42 and 2,236.44

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Solution

The fourth proportional to 8,081.20, 12,120.42 and 2,236.44 is: 3,354.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.20 : 12,120.42 = 2,236.44 : x
  2. Step 2: Convert to fraction form
    8,081.20/12,120.42 = 2,236.44/x
  3. Step 3: Cross multiply
    8,081.20x = 12,120.42 × 2,236.44
  4. Step 4: Simplify right side
    8,081.20x = 27,106,592.10
  5. Step 5: Solve for x
    x = 27,106,592.10/8,081.20
  6. Step 6: Final answer
    x = 3,354.28

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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.