Home / 12,261.68-18,393.60-3,942.44

Finding the Fourth Proportional to 12,261.68, 18,393.60 and 3,942.44

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Solution

The fourth proportional to 12,261.68, 18,393.60 and 3,942.44 is: 5,914.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.68 : 18,393.60 = 3,942.44 : x
  2. Step 2: Convert to fraction form
    12,261.68/18,393.60 = 3,942.44/x
  3. Step 3: Cross multiply
    12,261.68x = 18,393.60 × 3,942.44
  4. Step 4: Simplify right side
    12,261.68x = 72,515,664.38
  5. Step 5: Solve for x
    x = 72,515,664.38/12,261.68
  6. Step 6: Final answer
    x = 5,914.01

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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.