Home / 10,540.38-15,812.51-3,519.73

Finding the Fourth Proportional to 10,540.38, 15,812.51 and 3,519.73

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Solution

The fourth proportional to 10,540.38, 15,812.51 and 3,519.73 is: 5,280.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,540.38 : 15,812.51 = 3,519.73 : x
  2. Step 2: Convert to fraction form
    10,540.38/15,812.51 = 3,519.73/x
  3. Step 3: Cross multiply
    10,540.38x = 15,812.51 × 3,519.73
  4. Step 4: Simplify right side
    10,540.38x = 55,655,708.69
  5. Step 5: Solve for x
    x = 55,655,708.69/10,540.38
  6. Step 6: Final answer
    x = 5,280.24

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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.