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Finding the Fourth Proportional to 11,191.82, 16,787.82 and 3,400.62

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Solution

The fourth proportional to 11,191.82, 16,787.82 and 3,400.62 is: 5,100.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.82 : 16,787.82 = 3,400.62 : x
  2. Step 2: Convert to fraction form
    11,191.82/16,787.82 = 3,400.62/x
  3. Step 3: Cross multiply
    11,191.82x = 16,787.82 × 3,400.62
  4. Step 4: Simplify right side
    11,191.82x = 57,088,996.45
  5. Step 5: Solve for x
    x = 57,088,996.45/11,191.82
  6. Step 6: Final answer
    x = 5,100.96

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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.