Home / 11,191.38-16,787.88-3,400.18

Finding the Fourth Proportional to 11,191.38, 16,787.88 and 3,400.18

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Solution

The fourth proportional to 11,191.38, 16,787.88 and 3,400.18 is: 5,100.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.38 : 16,787.88 = 3,400.18 : x
  2. Step 2: Convert to fraction form
    11,191.38/16,787.88 = 3,400.18/x
  3. Step 3: Cross multiply
    11,191.38x = 16,787.88 × 3,400.18
  4. Step 4: Simplify right side
    11,191.38x = 57,081,813.82
  5. Step 5: Solve for x
    x = 57,081,813.82/11,191.38
  6. Step 6: Final answer
    x = 5,100.52

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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.