Home / 13,751.38-20,625.24-3,891.52

Finding the Fourth Proportional to 13,751.38, 20,625.24 and 3,891.52

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Solution

The fourth proportional to 13,751.38, 20,625.24 and 3,891.52 is: 5,836.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.38 : 20,625.24 = 3,891.52 : x
  2. Step 2: Convert to fraction form
    13,751.38/20,625.24 = 3,891.52/x
  3. Step 3: Cross multiply
    13,751.38x = 20,625.24 × 3,891.52
  4. Step 4: Simplify right side
    13,751.38x = 80,263,533.96
  5. Step 5: Solve for x
    x = 80,263,533.96/13,751.38
  6. Step 6: Final answer
    x = 5,836.76

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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.