Home / 13,760.76-20,629.62-5,550.84

Finding the Fourth Proportional to 13,760.76, 20,629.62 and 5,550.84

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Solution

The fourth proportional to 13,760.76, 20,629.62 and 5,550.84 is: 8,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.76 : 20,629.62 = 5,550.84 : x
  2. Step 2: Convert to fraction form
    13,760.76/20,629.62 = 5,550.84/x
  3. Step 3: Cross multiply
    13,760.76x = 20,629.62 × 5,550.84
  4. Step 4: Simplify right side
    13,760.76x = 114,511,719.88
  5. Step 5: Solve for x
    x = 114,511,719.88/13,760.76
  6. Step 6: Final answer
    x = 8,321.61

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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.