Home / 13,930.96-20,891.48-4,067.68

Finding the Fourth Proportional to 13,930.96, 20,891.48 and 4,067.68

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Solution

The fourth proportional to 13,930.96, 20,891.48 and 4,067.68 is: 6,100.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.96 : 20,891.48 = 4,067.68 : x
  2. Step 2: Convert to fraction form
    13,930.96/20,891.48 = 4,067.68/x
  3. Step 3: Cross multiply
    13,930.96x = 20,891.48 × 4,067.68
  4. Step 4: Simplify right side
    13,930.96x = 84,979,855.37
  5. Step 5: Solve for x
    x = 84,979,855.37/13,930.96
  6. Step 6: Final answer
    x = 6,100.07

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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.