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Finding the Fourth Proportional to 8,833.80, 13,251.90 and 3,285.80

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Solution

The fourth proportional to 8,833.80, 13,251.90 and 3,285.80 is: 4,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,833.80 : 13,251.90 = 3,285.80 : x
  2. Step 2: Convert to fraction form
    8,833.80/13,251.90 = 3,285.80/x
  3. Step 3: Cross multiply
    8,833.80x = 13,251.90 × 3,285.80
  4. Step 4: Simplify right side
    8,833.80x = 43,543,093.02
  5. Step 5: Solve for x
    x = 43,543,093.02/8,833.80
  6. Step 6: Final answer
    x = 4,929.15

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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.