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Finding the Fourth Proportional to 8,103.79, 11,183.22 and 4,377.79

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Solution

The fourth proportional to 8,103.79, 11,183.22 and 4,377.79 is: 6,041.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.79 : 11,183.22 = 4,377.79 : x
  2. Step 2: Convert to fraction form
    8,103.79/11,183.22 = 4,377.79/x
  3. Step 3: Cross multiply
    8,103.79x = 11,183.22 × 4,377.79
  4. Step 4: Simplify right side
    8,103.79x = 48,957,732.77
  5. Step 5: Solve for x
    x = 48,957,732.77/8,103.79
  6. Step 6: Final answer
    x = 6,041.34

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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.