Home / 13,942.56-20,911.92-3,553.68

Finding the Fourth Proportional to 13,942.56, 20,911.92 and 3,553.68

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Solution

The fourth proportional to 13,942.56, 20,911.92 and 3,553.68 is: 5,330.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.56 : 20,911.92 = 3,553.68 : x
  2. Step 2: Convert to fraction form
    13,942.56/20,911.92 = 3,553.68/x
  3. Step 3: Cross multiply
    13,942.56x = 20,911.92 × 3,553.68
  4. Step 4: Simplify right side
    13,942.56x = 74,314,271.87
  5. Step 5: Solve for x
    x = 74,314,271.87/13,942.56
  6. Step 6: Final answer
    x = 5,330.03

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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.