Home / 13,791.05-20,683.92-5,357.55

Finding the Fourth Proportional to 13,791.05, 20,683.92 and 5,357.55

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Solution

The fourth proportional to 13,791.05, 20,683.92 and 5,357.55 is: 8,035.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.05 : 20,683.92 = 5,357.55 : x
  2. Step 2: Convert to fraction form
    13,791.05/20,683.92 = 5,357.55/x
  3. Step 3: Cross multiply
    13,791.05x = 20,683.92 × 5,357.55
  4. Step 4: Simplify right side
    13,791.05x = 110,815,078.12
  5. Step 5: Solve for x
    x = 110,815,078.12/13,791.05
  6. Step 6: Final answer
    x = 8,035.29

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1.5x scale

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.