Home / 10,157.28-15,235.92-3,231.72

Finding the Fourth Proportional to 10,157.28, 15,235.92 and 3,231.72

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Solution

The fourth proportional to 10,157.28, 15,235.92 and 3,231.72 is: 4,847.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,157.28 : 15,235.92 = 3,231.72 : x
  2. Step 2: Convert to fraction form
    10,157.28/15,235.92 = 3,231.72/x
  3. Step 3: Cross multiply
    10,157.28x = 15,235.92 × 3,231.72
  4. Step 4: Simplify right side
    10,157.28x = 49,238,227.38
  5. Step 5: Solve for x
    x = 49,238,227.38/10,157.28
  6. Step 6: Final answer
    x = 4,847.58

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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.