Home / 13,929.27-20,893.60-3,399.39

Finding the Fourth Proportional to 13,929.27, 20,893.60 and 3,399.39

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Solution

The fourth proportional to 13,929.27, 20,893.60 and 3,399.39 is: 5,099.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.27 : 20,893.60 = 3,399.39 : x
  2. Step 2: Convert to fraction form
    13,929.27/20,893.60 = 3,399.39/x
  3. Step 3: Cross multiply
    13,929.27x = 20,893.60 × 3,399.39
  4. Step 4: Simplify right side
    13,929.27x = 71,025,494.90
  5. Step 5: Solve for x
    x = 71,025,494.90/13,929.27
  6. Step 6: Final answer
    x = 5,099.01

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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.