Home / 13,751.38-20,627.86-3,889.83

Finding the Fourth Proportional to 13,751.38, 20,627.86 and 3,889.83

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Solution

The fourth proportional to 13,751.38, 20,627.86 and 3,889.83 is: 5,834.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.38 : 20,627.86 = 3,889.83 : x
  2. Step 2: Convert to fraction form
    13,751.38/20,627.86 = 3,889.83/x
  3. Step 3: Cross multiply
    13,751.38x = 20,627.86 × 3,889.83
  4. Step 4: Simplify right side
    13,751.38x = 80,238,827.56
  5. Step 5: Solve for x
    x = 80,238,827.56/13,751.38
  6. Step 6: Final answer
    x = 5,834.97

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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.