Home / 8,542.06-12,816.60-3,860.80

Finding the Fourth Proportional to 8,542.06, 12,816.60 and 3,860.80

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Solution

The fourth proportional to 8,542.06, 12,816.60 and 3,860.80 is: 5,792.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,542.06 : 12,816.60 = 3,860.80 : x
  2. Step 2: Convert to fraction form
    8,542.06/12,816.60 = 3,860.80/x
  3. Step 3: Cross multiply
    8,542.06x = 12,816.60 × 3,860.80
  4. Step 4: Simplify right side
    8,542.06x = 49,482,329.28
  5. Step 5: Solve for x
    x = 49,482,329.28/8,542.06
  6. Step 6: Final answer
    x = 5,792.79

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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.