Home / 13,379.18-20,067.96-4,145.18

Finding the Fourth Proportional to 13,379.18, 20,067.96 and 4,145.18

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Solution

The fourth proportional to 13,379.18, 20,067.96 and 4,145.18 is: 6,217.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.18 : 20,067.96 = 4,145.18 : x
  2. Step 2: Convert to fraction form
    13,379.18/20,067.96 = 4,145.18/x
  3. Step 3: Cross multiply
    13,379.18x = 20,067.96 × 4,145.18
  4. Step 4: Simplify right side
    13,379.18x = 83,185,306.43
  5. Step 5: Solve for x
    x = 83,185,306.43/13,379.18
  6. Step 6: Final answer
    x = 6,217.52

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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.