Home / 11,930.94-17,890.92-3,611.85

Finding the Fourth Proportional to 11,930.94, 17,890.92 and 3,611.85

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Solution

The fourth proportional to 11,930.94, 17,890.92 and 3,611.85 is: 5,416.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,930.94 : 17,890.92 = 3,611.85 : x
  2. Step 2: Convert to fraction form
    11,930.94/17,890.92 = 3,611.85/x
  3. Step 3: Cross multiply
    11,930.94x = 17,890.92 × 3,611.85
  4. Step 4: Simplify right side
    11,930.94x = 64,619,319.40
  5. Step 5: Solve for x
    x = 64,619,319.40/11,930.94
  6. Step 6: Final answer
    x = 5,416.11

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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.