Home / 10,163.28-15,245.92-3,143.02

Finding the Fourth Proportional to 10,163.28, 15,245.92 and 3,143.02

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Solution

The fourth proportional to 10,163.28, 15,245.92 and 3,143.02 is: 4,714.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,163.28 : 15,245.92 = 3,143.02 : x
  2. Step 2: Convert to fraction form
    10,163.28/15,245.92 = 3,143.02/x
  3. Step 3: Cross multiply
    10,163.28x = 15,245.92 × 3,143.02
  4. Step 4: Simplify right side
    10,163.28x = 47,918,231.48
  5. Step 5: Solve for x
    x = 47,918,231.48/10,163.28
  6. Step 6: Final answer
    x = 4,714.84

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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.