Home / 12,141.04-18,211.80-3,375.83

Finding the Fourth Proportional to 12,141.04, 18,211.80 and 3,375.83

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Solution

The fourth proportional to 12,141.04, 18,211.80 and 3,375.83 is: 5,063.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141.04 : 18,211.80 = 3,375.83 : x
  2. Step 2: Convert to fraction form
    12,141.04/18,211.80 = 3,375.83/x
  3. Step 3: Cross multiply
    12,141.04x = 18,211.80 × 3,375.83
  4. Step 4: Simplify right side
    12,141.04x = 61,479,940.79
  5. Step 5: Solve for x
    x = 61,479,940.79/12,141.04
  6. Step 6: Final answer
    x = 5,063.81

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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.