Home / 11,076.80-16,615.20-3,179.30

Finding the Fourth Proportional to 11,076.80, 16,615.20 and 3,179.30

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Solution

The fourth proportional to 11,076.80, 16,615.20 and 3,179.30 is: 4,768.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,076.80 : 16,615.20 = 3,179.30 : x
  2. Step 2: Convert to fraction form
    11,076.80/16,615.20 = 3,179.30/x
  3. Step 3: Cross multiply
    11,076.80x = 16,615.20 × 3,179.30
  4. Step 4: Simplify right side
    11,076.80x = 52,824,705.36
  5. Step 5: Solve for x
    x = 52,824,705.36/11,076.80
  6. Step 6: Final answer
    x = 4,768.95

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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.