Home / 12,183.04-18,272.40-3,975.04

Finding the Fourth Proportional to 12,183.04, 18,272.40 and 3,975.04

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Solution

The fourth proportional to 12,183.04, 18,272.40 and 3,975.04 is: 5,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.04 : 18,272.40 = 3,975.04 : x
  2. Step 2: Convert to fraction form
    12,183.04/18,272.40 = 3,975.04/x
  3. Step 3: Cross multiply
    12,183.04x = 18,272.40 × 3,975.04
  4. Step 4: Simplify right side
    12,183.04x = 72,633,520.90
  5. Step 5: Solve for x
    x = 72,633,520.90/12,183.04
  6. Step 6: Final answer
    x = 5,961.86

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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.