Home / 12,198.20-18,297.30-2,964.20

Finding the Fourth Proportional to 12,198.20, 18,297.30 and 2,964.20

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Solution

The fourth proportional to 12,198.20, 18,297.30 and 2,964.20 is: 4,446.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.20 : 18,297.30 = 2,964.20 : x
  2. Step 2: Convert to fraction form
    12,198.20/18,297.30 = 2,964.20/x
  3. Step 3: Cross multiply
    12,198.20x = 18,297.30 × 2,964.20
  4. Step 4: Simplify right side
    12,198.20x = 54,236,765.17
  5. Step 5: Solve for x
    x = 54,236,765.17/12,198.20
  6. Step 6: Final answer
    x = 4,446.29

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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.