Home / 11,910.62-17,866.74-4,120.04

Finding the Fourth Proportional to 11,910.62, 17,866.74 and 4,120.04

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Solution

The fourth proportional to 11,910.62, 17,866.74 and 4,120.04 is: 6,180.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.62 : 17,866.74 = 4,120.04 : x
  2. Step 2: Convert to fraction form
    11,910.62/17,866.74 = 4,120.04/x
  3. Step 3: Cross multiply
    11,910.62x = 17,866.74 × 4,120.04
  4. Step 4: Simplify right side
    11,910.62x = 73,611,683.47
  5. Step 5: Solve for x
    x = 73,611,683.47/11,910.62
  6. Step 6: Final answer
    x = 6,180.34

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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.