Home / 11,279.22-16,913.49-3,378.69

Finding the Fourth Proportional to 11,279.22, 16,913.49 and 3,378.69

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Solution

The fourth proportional to 11,279.22, 16,913.49 and 3,378.69 is: 5,066.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.22 : 16,913.49 = 3,378.69 : x
  2. Step 2: Convert to fraction form
    11,279.22/16,913.49 = 3,378.69/x
  3. Step 3: Cross multiply
    11,279.22x = 16,913.49 × 3,378.69
  4. Step 4: Simplify right side
    11,279.22x = 57,145,439.53
  5. Step 5: Solve for x
    x = 57,145,439.53/11,279.22
  6. Step 6: Final answer
    x = 5,066.44

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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.