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Finding the Fourth Proportional to 7,998.46, 11,997.69 and 2,451.78

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Solution

The fourth proportional to 7,998.46, 11,997.69 and 2,451.78 is: 3,677.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.46 : 11,997.69 = 2,451.78 : x
  2. Step 2: Convert to fraction form
    7,998.46/11,997.69 = 2,451.78/x
  3. Step 3: Cross multiply
    7,998.46x = 11,997.69 × 2,451.78
  4. Step 4: Simplify right side
    7,998.46x = 29,415,696.39
  5. Step 5: Solve for x
    x = 29,415,696.39/7,998.46
  6. Step 6: Final answer
    x = 3,677.67

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Similar ratio
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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.