Home / 8,816.80-13,229.85-3,889.84

Finding the Fourth Proportional to 8,816.80, 13,229.85 and 3,889.84

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Solution

The fourth proportional to 8,816.80, 13,229.85 and 3,889.84 is: 5,836.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.80 : 13,229.85 = 3,889.84 : x
  2. Step 2: Convert to fraction form
    8,816.80/13,229.85 = 3,889.84/x
  3. Step 3: Cross multiply
    8,816.80x = 13,229.85 × 3,889.84
  4. Step 4: Simplify right side
    8,816.80x = 51,461,999.72
  5. Step 5: Solve for x
    x = 51,461,999.72/8,816.80
  6. Step 6: Final answer
    x = 5,836.81

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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.