Home / 8,786.82-13,181.40-2,942.22

Finding the Fourth Proportional to 8,786.82, 13,181.40 and 2,942.22

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Solution

The fourth proportional to 8,786.82, 13,181.40 and 2,942.22 is: 4,413.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.82 : 13,181.40 = 2,942.22 : x
  2. Step 2: Convert to fraction form
    8,786.82/13,181.40 = 2,942.22/x
  3. Step 3: Cross multiply
    8,786.82x = 13,181.40 × 2,942.22
  4. Step 4: Simplify right side
    8,786.82x = 38,782,578.71
  5. Step 5: Solve for x
    x = 38,782,578.71/8,786.82
  6. Step 6: Final answer
    x = 4,413.72

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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.