Home / 13,694.85-20,542.86-3,834.72

Finding the Fourth Proportional to 13,694.85, 20,542.86 and 3,834.72

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Solution

The fourth proportional to 13,694.85, 20,542.86 and 3,834.72 is: 5,752.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.85 : 20,542.86 = 3,834.72 : x
  2. Step 2: Convert to fraction form
    13,694.85/20,542.86 = 3,834.72/x
  3. Step 3: Cross multiply
    13,694.85x = 20,542.86 × 3,834.72
  4. Step 4: Simplify right side
    13,694.85x = 78,776,116.10
  5. Step 5: Solve for x
    x = 78,776,116.10/13,694.85
  6. Step 6: Final answer
    x = 5,752.24

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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.