Home / 11,872.41-17,808.63-4,081.22

Finding the Fourth Proportional to 11,872.41, 17,808.63 and 4,081.22

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Solution

The fourth proportional to 11,872.41, 17,808.63 and 4,081.22 is: 6,121.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.41 : 17,808.63 = 4,081.22 : x
  2. Step 2: Convert to fraction form
    11,872.41/17,808.63 = 4,081.22/x
  3. Step 3: Cross multiply
    11,872.41x = 17,808.63 × 4,081.22
  4. Step 4: Simplify right side
    11,872.41x = 72,680,899.36
  5. Step 5: Solve for x
    x = 72,680,899.36/11,872.41
  6. Step 6: Final answer
    x = 6,121.83

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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.