Home / 11,688.94-17,532.78-3,791.85

Finding the Fourth Proportional to 11,688.94, 17,532.78 and 3,791.85

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Solution

The fourth proportional to 11,688.94, 17,532.78 and 3,791.85 is: 5,687.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.94 : 17,532.78 = 3,791.85 : x
  2. Step 2: Convert to fraction form
    11,688.94/17,532.78 = 3,791.85/x
  3. Step 3: Cross multiply
    11,688.94x = 17,532.78 × 3,791.85
  4. Step 4: Simplify right side
    11,688.94x = 66,481,671.84
  5. Step 5: Solve for x
    x = 66,481,671.84/11,688.94
  6. Step 6: Final answer
    x = 5,687.57

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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.