Home / 8,816.92-12,167.72-5,279.44

Finding the Fourth Proportional to 8,816.92, 12,167.72 and 5,279.44

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Solution

The fourth proportional to 8,816.92, 12,167.72 and 5,279.44 is: 7,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.92 : 12,167.72 = 5,279.44 : x
  2. Step 2: Convert to fraction form
    8,816.92/12,167.72 = 5,279.44/x
  3. Step 3: Cross multiply
    8,816.92x = 12,167.72 × 5,279.44
  4. Step 4: Simplify right side
    8,816.92x = 64,238,747.68
  5. Step 5: Solve for x
    x = 64,238,747.68/8,816.92
  6. Step 6: Final answer
    x = 7,285.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.