Home / 11,229.20-16,843.80-4,986.80

Finding the Fourth Proportional to 11,229.20, 16,843.80 and 4,986.80

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Solution

The fourth proportional to 11,229.20, 16,843.80 and 4,986.80 is: 7,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.20 : 16,843.80 = 4,986.80 : x
  2. Step 2: Convert to fraction form
    11,229.20/16,843.80 = 4,986.80/x
  3. Step 3: Cross multiply
    11,229.20x = 16,843.80 × 4,986.80
  4. Step 4: Simplify right side
    11,229.20x = 83,996,661.84
  5. Step 5: Solve for x
    x = 83,996,661.84/11,229.20
  6. Step 6: Final answer
    x = 7,480.20

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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.