Home / 12,198.72-18,304.20-4,411.20

Finding the Fourth Proportional to 12,198.72, 18,304.20 and 4,411.20

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Solution

The fourth proportional to 12,198.72, 18,304.20 and 4,411.20 is: 6,619.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.72 : 18,304.20 = 4,411.20 : x
  2. Step 2: Convert to fraction form
    12,198.72/18,304.20 = 4,411.20/x
  3. Step 3: Cross multiply
    12,198.72x = 18,304.20 × 4,411.20
  4. Step 4: Simplify right side
    12,198.72x = 80,743,487.04
  5. Step 5: Solve for x
    x = 80,743,487.04/12,198.72
  6. Step 6: Final answer
    x = 6,619.01

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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.