Home / 12,218.27-18,318.44-3,893.49

Finding the Fourth Proportional to 12,218.27, 18,318.44 and 3,893.49

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Solution

The fourth proportional to 12,218.27, 18,318.44 and 3,893.49 is: 5,837.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.27 : 18,318.44 = 3,893.49 : x
  2. Step 2: Convert to fraction form
    12,218.27/18,318.44 = 3,893.49/x
  3. Step 3: Cross multiply
    12,218.27x = 18,318.44 × 3,893.49
  4. Step 4: Simplify right side
    12,218.27x = 71,322,662.96
  5. Step 5: Solve for x
    x = 71,322,662.96/12,218.27
  6. Step 6: Final answer
    x = 5,837.38

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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.