Home / 11,317.25-16,976.33-5,391.09

Finding the Fourth Proportional to 11,317.25, 16,976.33 and 5,391.09

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Solution

The fourth proportional to 11,317.25, 16,976.33 and 5,391.09 is: 8,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.25 : 16,976.33 = 5,391.09 : x
  2. Step 2: Convert to fraction form
    11,317.25/16,976.33 = 5,391.09/x
  3. Step 3: Cross multiply
    11,317.25x = 16,976.33 × 5,391.09
  4. Step 4: Simplify right side
    11,317.25x = 91,520,922.90
  5. Step 5: Solve for x
    x = 91,520,922.90/11,317.25
  6. Step 6: Final answer
    x = 8,086.85

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1.5x scale

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.