Home / 11,279.43-16,913.84-3,378.90

Finding the Fourth Proportional to 11,279.43, 16,913.84 and 3,378.90

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Solution

The fourth proportional to 11,279.43, 16,913.84 and 3,378.90 is: 5,066.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.43 : 16,913.84 = 3,378.90 : x
  2. Step 2: Convert to fraction form
    11,279.43/16,913.84 = 3,378.90/x
  3. Step 3: Cross multiply
    11,279.43x = 16,913.84 × 3,378.90
  4. Step 4: Simplify right side
    11,279.43x = 57,150,157.08
  5. Step 5: Solve for x
    x = 57,150,157.08/11,279.43
  6. Step 6: Final answer
    x = 5,066.76

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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.