Home / 18,211.78-27,321.30-5,734.95

Finding the Fourth Proportional to 18,211.78, 27,321.30 and 5,734.95

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Solution

The fourth proportional to 18,211.78, 27,321.30 and 5,734.95 is: 8,603.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.78 : 27,321.30 = 5,734.95 : x
  2. Step 2: Convert to fraction form
    18,211.78/27,321.30 = 5,734.95/x
  3. Step 3: Cross multiply
    18,211.78x = 27,321.30 × 5,734.95
  4. Step 4: Simplify right side
    18,211.78x = 156,686,289.44
  5. Step 5: Solve for x
    x = 156,686,289.44/18,211.78
  6. Step 6: Final answer
    x = 8,603.57

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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.