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Finding the Fourth Proportional to 8,002.75, 12,008.45 and 3,898.75

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Solution

The fourth proportional to 8,002.75, 12,008.45 and 3,898.75 is: 5,850.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,002.75 : 12,008.45 = 3,898.75 : x
  2. Step 2: Convert to fraction form
    8,002.75/12,008.45 = 3,898.75/x
  3. Step 3: Cross multiply
    8,002.75x = 12,008.45 × 3,898.75
  4. Step 4: Simplify right side
    8,002.75x = 46,817,944.44
  5. Step 5: Solve for x
    x = 46,817,944.44/8,002.75
  6. Step 6: Final answer
    x = 5,850.23

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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.