Home / 8,821.06-13,236.78-3,278.30

Finding the Fourth Proportional to 8,821.06, 13,236.78 and 3,278.30

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Solution

The fourth proportional to 8,821.06, 13,236.78 and 3,278.30 is: 4,919.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.06 : 13,236.78 = 3,278.30 : x
  2. Step 2: Convert to fraction form
    8,821.06/13,236.78 = 3,278.30/x
  3. Step 3: Cross multiply
    8,821.06x = 13,236.78 × 3,278.30
  4. Step 4: Simplify right side
    8,821.06x = 43,394,135.87
  5. Step 5: Solve for x
    x = 43,394,135.87/8,821.06
  6. Step 6: Final answer
    x = 4,919.38

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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.