Home / 13,590.20-20,375.70-6,198.20

Finding the Fourth Proportional to 13,590.20, 20,375.70 and 6,198.20

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Solution

The fourth proportional to 13,590.20, 20,375.70 and 6,198.20 is: 9,292.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.20 : 20,375.70 = 6,198.20 : x
  2. Step 2: Convert to fraction form
    13,590.20/20,375.70 = 6,198.20/x
  3. Step 3: Cross multiply
    13,590.20x = 20,375.70 × 6,198.20
  4. Step 4: Simplify right side
    13,590.20x = 126,292,663.74
  5. Step 5: Solve for x
    x = 126,292,663.74/13,590.20
  6. Step 6: Final answer
    x = 9,292.92

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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.