Home / 12,197.14-18,297.97-3,879.25

Finding the Fourth Proportional to 12,197.14, 18,297.97 and 3,879.25

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Solution

The fourth proportional to 12,197.14, 18,297.97 and 3,879.25 is: 5,819.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197.14 : 18,297.97 = 3,879.25 : x
  2. Step 2: Convert to fraction form
    12,197.14/18,297.97 = 3,879.25/x
  3. Step 3: Cross multiply
    12,197.14x = 18,297.97 × 3,879.25
  4. Step 4: Simplify right side
    12,197.14x = 70,982,344.68
  5. Step 5: Solve for x
    x = 70,982,344.68/12,197.14
  6. Step 6: Final answer
    x = 5,819.59

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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.