Home / 10,481.28-15,722.28-3,555.72

Finding the Fourth Proportional to 10,481.28, 15,722.28 and 3,555.72

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Solution

The fourth proportional to 10,481.28, 15,722.28 and 3,555.72 is: 5,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,481.28 : 15,722.28 = 3,555.72 : x
  2. Step 2: Convert to fraction form
    10,481.28/15,722.28 = 3,555.72/x
  3. Step 3: Cross multiply
    10,481.28x = 15,722.28 × 3,555.72
  4. Step 4: Simplify right side
    10,481.28x = 55,904,025.44
  5. Step 5: Solve for x
    x = 55,904,025.44/10,481.28
  6. Step 6: Final answer
    x = 5,333.70

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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.