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Finding the Fourth Proportional to 8,011.56, 12,007.82 and 3,330.57

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Solution

The fourth proportional to 8,011.56, 12,007.82 and 3,330.57 is: 4,991.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,011.56 : 12,007.82 = 3,330.57 : x
  2. Step 2: Convert to fraction form
    8,011.56/12,007.82 = 3,330.57/x
  3. Step 3: Cross multiply
    8,011.56x = 12,007.82 × 3,330.57
  4. Step 4: Simplify right side
    8,011.56x = 39,992,893.38
  5. Step 5: Solve for x
    x = 39,992,893.38/8,011.56
  6. Step 6: Final answer
    x = 4,991.90

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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.