Home / 18,742.91-28,114.38-5,604.53

Finding the Fourth Proportional to 18,742.91, 28,114.38 and 5,604.53

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Solution

The fourth proportional to 18,742.91, 28,114.38 and 5,604.53 is: 8,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742.91 : 28,114.38 = 5,604.53 : x
  2. Step 2: Convert to fraction form
    18,742.91/28,114.38 = 5,604.53/x
  3. Step 3: Cross multiply
    18,742.91x = 28,114.38 × 5,604.53
  4. Step 4: Simplify right side
    18,742.91x = 157,567,745.57
  5. Step 5: Solve for x
    x = 157,567,745.57/18,742.91
  6. Step 6: Final answer
    x = 8,406.79

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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.