Home / 12,122.32-18,183.90-3,357.88

Finding the Fourth Proportional to 12,122.32, 18,183.90 and 3,357.88

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Solution

The fourth proportional to 12,122.32, 18,183.90 and 3,357.88 is: 5,036.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.32 : 18,183.90 = 3,357.88 : x
  2. Step 2: Convert to fraction form
    12,122.32/18,183.90 = 3,357.88/x
  3. Step 3: Cross multiply
    12,122.32x = 18,183.90 × 3,357.88
  4. Step 4: Simplify right side
    12,122.32x = 61,059,246.42
  5. Step 5: Solve for x
    x = 61,059,246.42/12,122.32
  6. Step 6: Final answer
    x = 5,036.93

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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.