Home / 12,177.44-18,266.28-4,380.80

Finding the Fourth Proportional to 12,177.44, 18,266.28 and 4,380.80

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Solution

The fourth proportional to 12,177.44, 18,266.28 and 4,380.80 is: 6,571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.44 : 18,266.28 = 4,380.80 : x
  2. Step 2: Convert to fraction form
    12,177.44/18,266.28 = 4,380.80/x
  3. Step 3: Cross multiply
    12,177.44x = 18,266.28 × 4,380.80
  4. Step 4: Simplify right side
    12,177.44x = 80,020,919.42
  5. Step 5: Solve for x
    x = 80,020,919.42/12,177.44
  6. Step 6: Final answer
    x = 6,571.24

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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.