Home / 13,137.66-19,704.38-3,775.56

Finding the Fourth Proportional to 13,137.66, 19,704.38 and 3,775.56

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Solution

The fourth proportional to 13,137.66, 19,704.38 and 3,775.56 is: 5,662.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137.66 : 19,704.38 = 3,775.56 : x
  2. Step 2: Convert to fraction form
    13,137.66/19,704.38 = 3,775.56/x
  3. Step 3: Cross multiply
    13,137.66x = 19,704.38 × 3,775.56
  4. Step 4: Simplify right side
    13,137.66x = 74,394,976.18
  5. Step 5: Solve for x
    x = 74,394,976.18/13,137.66
  6. Step 6: Final answer
    x = 5,662.73

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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.