Home / 12,155.22-18,235.28-3,836.52

Finding the Fourth Proportional to 12,155.22, 18,235.28 and 3,836.52

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Solution

The fourth proportional to 12,155.22, 18,235.28 and 3,836.52 is: 5,755.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155.22 : 18,235.28 = 3,836.52 : x
  2. Step 2: Convert to fraction form
    12,155.22/18,235.28 = 3,836.52/x
  3. Step 3: Cross multiply
    12,155.22x = 18,235.28 × 3,836.52
  4. Step 4: Simplify right side
    12,155.22x = 69,959,997.24
  5. Step 5: Solve for x
    x = 69,959,997.24/12,155.22
  6. Step 6: Final answer
    x = 5,755.55

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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.