Home / 13,751.75-20,627.49-3,889.73

Finding the Fourth Proportional to 13,751.75, 20,627.49 and 3,889.73

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Solution

The fourth proportional to 13,751.75, 20,627.49 and 3,889.73 is: 5,834.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.75 : 20,627.49 = 3,889.73 : x
  2. Step 2: Convert to fraction form
    13,751.75/20,627.49 = 3,889.73/x
  3. Step 3: Cross multiply
    13,751.75x = 20,627.49 × 3,889.73
  4. Step 4: Simplify right side
    13,751.75x = 80,235,366.68
  5. Step 5: Solve for x
    x = 80,235,366.68/13,751.75
  6. Step 6: Final answer
    x = 5,834.56

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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.