Home / 11,320.20-16,969.37-3,919.10

Finding the Fourth Proportional to 11,320.20, 16,969.37 and 3,919.10

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Solution

The fourth proportional to 11,320.20, 16,969.37 and 3,919.10 is: 5,874.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.20 : 16,969.37 = 3,919.10 : x
  2. Step 2: Convert to fraction form
    11,320.20/16,969.37 = 3,919.10/x
  3. Step 3: Cross multiply
    11,320.20x = 16,969.37 × 3,919.10
  4. Step 4: Simplify right side
    11,320.20x = 66,504,553.52
  5. Step 5: Solve for x
    x = 66,504,553.52/11,320.20
  6. Step 6: Final answer
    x = 5,874.86

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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.