Home / 12,437.16-18,653.94-3,672.78

Finding the Fourth Proportional to 12,437.16, 18,653.94 and 3,672.78

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Solution

The fourth proportional to 12,437.16, 18,653.94 and 3,672.78 is: 5,508.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.16 : 18,653.94 = 3,672.78 : x
  2. Step 2: Convert to fraction form
    12,437.16/18,653.94 = 3,672.78/x
  3. Step 3: Cross multiply
    12,437.16x = 18,653.94 × 3,672.78
  4. Step 4: Simplify right side
    12,437.16x = 68,511,817.75
  5. Step 5: Solve for x
    x = 68,511,817.75/12,437.16
  6. Step 6: Final answer
    x = 5,508.64

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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.