Home / 10,787.70-16,180.46-3,391.94

Finding the Fourth Proportional to 10,787.70, 16,180.46 and 3,391.94

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Solution

The fourth proportional to 10,787.70, 16,180.46 and 3,391.94 is: 5,087.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.70 : 16,180.46 = 3,391.94 : x
  2. Step 2: Convert to fraction form
    10,787.70/16,180.46 = 3,391.94/x
  3. Step 3: Cross multiply
    10,787.70x = 16,180.46 × 3,391.94
  4. Step 4: Simplify right side
    10,787.70x = 54,883,149.49
  5. Step 5: Solve for x
    x = 54,883,149.49/10,787.70
  6. Step 6: Final answer
    x = 5,087.57

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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.