Home / 13,388.58-20,078.24-5,488.85

Finding the Fourth Proportional to 13,388.58, 20,078.24 and 5,488.85

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Solution

The fourth proportional to 13,388.58, 20,078.24 and 5,488.85 is: 8,231.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.58 : 20,078.24 = 5,488.85 : x
  2. Step 2: Convert to fraction form
    13,388.58/20,078.24 = 5,488.85/x
  3. Step 3: Cross multiply
    13,388.58x = 20,078.24 × 5,488.85
  4. Step 4: Simplify right side
    13,388.58x = 110,206,447.62
  5. Step 5: Solve for x
    x = 110,206,447.62/13,388.58
  6. Step 6: Final answer
    x = 8,231.38

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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.