Home / 11,820.06-17,731.92-4,028.28

Finding the Fourth Proportional to 11,820.06, 17,731.92 and 4,028.28

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Solution

The fourth proportional to 11,820.06, 17,731.92 and 4,028.28 is: 6,043.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.06 : 17,731.92 = 4,028.28 : x
  2. Step 2: Convert to fraction form
    11,820.06/17,731.92 = 4,028.28/x
  3. Step 3: Cross multiply
    11,820.06x = 17,731.92 × 4,028.28
  4. Step 4: Simplify right side
    11,820.06x = 71,429,138.70
  5. Step 5: Solve for x
    x = 71,429,138.70/11,820.06
  6. Step 6: Final answer
    x = 6,043.04

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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.