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Finding the Fourth Proportional to 8,857.80, 13,280.53 and 3,924.77

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Solution

The fourth proportional to 8,857.80, 13,280.53 and 3,924.77 is: 5,884.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.80 : 13,280.53 = 3,924.77 : x
  2. Step 2: Convert to fraction form
    8,857.80/13,280.53 = 3,924.77/x
  3. Step 3: Cross multiply
    8,857.80x = 13,280.53 × 3,924.77
  4. Step 4: Simplify right side
    8,857.80x = 52,123,025.73
  5. Step 5: Solve for x
    x = 52,123,025.73/8,857.80
  6. Step 6: Final answer
    x = 5,884.42

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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.