Home / 12,940.28-19,408.98-3,706.04

Finding the Fourth Proportional to 12,940.28, 19,408.98 and 3,706.04

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Solution

The fourth proportional to 12,940.28, 19,408.98 and 3,706.04 is: 5,558.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940.28 : 19,408.98 = 3,706.04 : x
  2. Step 2: Convert to fraction form
    12,940.28/19,408.98 = 3,706.04/x
  3. Step 3: Cross multiply
    12,940.28x = 19,408.98 × 3,706.04
  4. Step 4: Simplify right side
    12,940.28x = 71,930,456.24
  5. Step 5: Solve for x
    x = 71,930,456.24/12,940.28
  6. Step 6: Final answer
    x = 5,558.65

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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.