Home / 13,753.20-20,627.52-3,890.22

Finding the Fourth Proportional to 13,753.20, 20,627.52 and 3,890.22

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Solution

The fourth proportional to 13,753.20, 20,627.52 and 3,890.22 is: 5,834.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.20 : 20,627.52 = 3,890.22 : x
  2. Step 2: Convert to fraction form
    13,753.20/20,627.52 = 3,890.22/x
  3. Step 3: Cross multiply
    13,753.20x = 20,627.52 × 3,890.22
  4. Step 4: Simplify right side
    13,753.20x = 80,245,590.85
  5. Step 5: Solve for x
    x = 80,245,590.85/13,753.20
  6. Step 6: Final answer
    x = 5,834.69

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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.