Home / 13,934.25-20,906.82-6,137.60

Finding the Fourth Proportional to 13,934.25, 20,906.82 and 6,137.60

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Solution

The fourth proportional to 13,934.25, 20,906.82 and 6,137.60 is: 9,208.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.25 : 20,906.82 = 6,137.60 : x
  2. Step 2: Convert to fraction form
    13,934.25/20,906.82 = 6,137.60/x
  3. Step 3: Cross multiply
    13,934.25x = 20,906.82 × 6,137.60
  4. Step 4: Simplify right side
    13,934.25x = 128,317,593.90
  5. Step 5: Solve for x
    x = 128,317,593.90/13,934.25
  6. Step 6: Final answer
    x = 9,208.79

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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.