Home / 8,786.28-13,178.04-2,942.94

Finding the Fourth Proportional to 8,786.28, 13,178.04 and 2,942.94

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Solution

The fourth proportional to 8,786.28, 13,178.04 and 2,942.94 is: 4,413.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.28 : 13,178.04 = 2,942.94 : x
  2. Step 2: Convert to fraction form
    8,786.28/13,178.04 = 2,942.94/x
  3. Step 3: Cross multiply
    8,786.28x = 13,178.04 × 2,942.94
  4. Step 4: Simplify right side
    8,786.28x = 38,782,115.15
  5. Step 5: Solve for x
    x = 38,782,115.15/8,786.28
  6. Step 6: Final answer
    x = 4,413.94

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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.