Home / 8,786.40-13,180.08-2,942.48

Finding the Fourth Proportional to 8,786.40, 13,180.08 and 2,942.48

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Solution

The fourth proportional to 8,786.40, 13,180.08 and 2,942.48 is: 4,413.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.40 : 13,180.08 = 2,942.48 : x
  2. Step 2: Convert to fraction form
    8,786.40/13,180.08 = 2,942.48/x
  3. Step 3: Cross multiply
    8,786.40x = 13,180.08 × 2,942.48
  4. Step 4: Simplify right side
    8,786.40x = 38,782,121.80
  5. Step 5: Solve for x
    x = 38,782,121.80/8,786.40
  6. Step 6: Final answer
    x = 4,413.88

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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.