Home / 10,138.20-15,205.92-2,743.32

Finding the Fourth Proportional to 10,138.20, 15,205.92 and 2,743.32

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Solution

The fourth proportional to 10,138.20, 15,205.92 and 2,743.32 is: 4,114.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.20 : 15,205.92 = 2,743.32 : x
  2. Step 2: Convert to fraction form
    10,138.20/15,205.92 = 2,743.32/x
  3. Step 3: Cross multiply
    10,138.20x = 15,205.92 × 2,743.32
  4. Step 4: Simplify right side
    10,138.20x = 41,714,704.45
  5. Step 5: Solve for x
    x = 41,714,704.45/10,138.20
  6. Step 6: Final answer
    x = 4,114.61

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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.