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Finding the Fourth Proportional to 8,347.59, 12,520.78 and 4,183.38

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Solution

The fourth proportional to 8,347.59, 12,520.78 and 4,183.38 is: 6,274.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.59 : 12,520.78 = 4,183.38 : x
  2. Step 2: Convert to fraction form
    8,347.59/12,520.78 = 4,183.38/x
  3. Step 3: Cross multiply
    8,347.59x = 12,520.78 × 4,183.38
  4. Step 4: Simplify right side
    8,347.59x = 52,379,170.18
  5. Step 5: Solve for x
    x = 52,379,170.18/8,347.59
  6. Step 6: Final answer
    x = 6,274.77

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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.