Home / 12,198.96-18,298.26-3,879.48

Finding the Fourth Proportional to 12,198.96, 18,298.26 and 3,879.48

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Solution

The fourth proportional to 12,198.96, 18,298.26 and 3,879.48 is: 5,819.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.96 : 18,298.26 = 3,879.48 : x
  2. Step 2: Convert to fraction form
    12,198.96/18,298.26 = 3,879.48/x
  3. Step 3: Cross multiply
    12,198.96x = 18,298.26 × 3,879.48
  4. Step 4: Simplify right side
    12,198.96x = 70,987,733.70
  5. Step 5: Solve for x
    x = 70,987,733.70/12,198.96
  6. Step 6: Final answer
    x = 5,819.16

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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.