Home / 13,388.24-20,074.83-5,488.58

Finding the Fourth Proportional to 13,388.24, 20,074.83 and 5,488.58

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Solution

The fourth proportional to 13,388.24, 20,074.83 and 5,488.58 is: 8,229.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.24 : 20,074.83 = 5,488.58 : x
  2. Step 2: Convert to fraction form
    13,388.24/20,074.83 = 5,488.58/x
  3. Step 3: Cross multiply
    13,388.24x = 20,074.83 × 5,488.58
  4. Step 4: Simplify right side
    13,388.24x = 110,182,310.44
  5. Step 5: Solve for x
    x = 110,182,310.44/13,388.24
  6. Step 6: Final answer
    x = 8,229.78

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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.