Home / 12,156.22-18,236.78-3,837.52

Finding the Fourth Proportional to 12,156.22, 18,236.78 and 3,837.52

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Solution

The fourth proportional to 12,156.22, 18,236.78 and 3,837.52 is: 5,757.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.22 : 18,236.78 = 3,837.52 : x
  2. Step 2: Convert to fraction form
    12,156.22/18,236.78 = 3,837.52/x
  3. Step 3: Cross multiply
    12,156.22x = 18,236.78 × 3,837.52
  4. Step 4: Simplify right side
    12,156.22x = 69,984,007.99
  5. Step 5: Solve for x
    x = 69,984,007.99/12,156.22
  6. Step 6: Final answer
    x = 5,757.05

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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.