Home / 8,839.80-13,255.65-3,906.90

Finding the Fourth Proportional to 8,839.80, 13,255.65 and 3,906.90

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Solution

The fourth proportional to 8,839.80, 13,255.65 and 3,906.90 is: 5,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.80 : 13,255.65 = 3,906.90 : x
  2. Step 2: Convert to fraction form
    8,839.80/13,255.65 = 3,906.90/x
  3. Step 3: Cross multiply
    8,839.80x = 13,255.65 × 3,906.90
  4. Step 4: Simplify right side
    8,839.80x = 51,788,498.99
  5. Step 5: Solve for x
    x = 51,788,498.99/8,839.80
  6. Step 6: Final answer
    x = 5,858.56

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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.