Home / 13,803.36-20,704.60-3,942.66

Finding the Fourth Proportional to 13,803.36, 20,704.60 and 3,942.66

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Solution

The fourth proportional to 13,803.36, 20,704.60 and 3,942.66 is: 5,913.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.36 : 20,704.60 = 3,942.66 : x
  2. Step 2: Convert to fraction form
    13,803.36/20,704.60 = 3,942.66/x
  3. Step 3: Cross multiply
    13,803.36x = 20,704.60 × 3,942.66
  4. Step 4: Simplify right side
    13,803.36x = 81,631,198.24
  5. Step 5: Solve for x
    x = 81,631,198.24/13,803.36
  6. Step 6: Final answer
    x = 5,913.86

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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.