Home / 13,815.92-20,708.44-5,493.68

Finding the Fourth Proportional to 13,815.92, 20,708.44 and 5,493.68

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Solution

The fourth proportional to 13,815.92, 20,708.44 and 5,493.68 is: 8,234.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.92 : 20,708.44 = 5,493.68 : x
  2. Step 2: Convert to fraction form
    13,815.92/20,708.44 = 5,493.68/x
  3. Step 3: Cross multiply
    13,815.92x = 20,708.44 × 5,493.68
  4. Step 4: Simplify right side
    13,815.92x = 113,765,542.66
  5. Step 5: Solve for x
    x = 113,765,542.66/13,815.92
  6. Step 6: Final answer
    x = 8,234.38

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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.