Home / 11,279.92-16,919.88-4,615.04

Finding the Fourth Proportional to 11,279.92, 16,919.88 and 4,615.04

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Solution

The fourth proportional to 11,279.92, 16,919.88 and 4,615.04 is: 6,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.92 : 16,919.88 = 4,615.04 : x
  2. Step 2: Convert to fraction form
    11,279.92/16,919.88 = 4,615.04/x
  3. Step 3: Cross multiply
    11,279.92x = 16,919.88 × 4,615.04
  4. Step 4: Simplify right side
    11,279.92x = 78,085,923.00
  5. Step 5: Solve for x
    x = 78,085,923.00/11,279.92
  6. Step 6: Final answer
    x = 6,922.56

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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.