Home / 18,761.16-28,147.24-5,614.56

Finding the Fourth Proportional to 18,761.16, 28,147.24 and 5,614.56

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Solution

The fourth proportional to 18,761.16, 28,147.24 and 5,614.56 is: 8,423.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,761.16 : 28,147.24 = 5,614.56 : x
  2. Step 2: Convert to fraction form
    18,761.16/28,147.24 = 5,614.56/x
  3. Step 3: Cross multiply
    18,761.16x = 28,147.24 × 5,614.56
  4. Step 4: Simplify right side
    18,761.16x = 158,034,367.81
  5. Step 5: Solve for x
    x = 158,034,367.81/18,761.16
  6. Step 6: Final answer
    x = 8,423.49

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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.