Home / 12,249.30-18,369.54-4,241.90

Finding the Fourth Proportional to 12,249.30, 18,369.54 and 4,241.90

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Solution

The fourth proportional to 12,249.30, 18,369.54 and 4,241.90 is: 6,361.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.30 : 18,369.54 = 4,241.90 : x
  2. Step 2: Convert to fraction form
    12,249.30/18,369.54 = 4,241.90/x
  3. Step 3: Cross multiply
    12,249.30x = 18,369.54 × 4,241.90
  4. Step 4: Simplify right side
    12,249.30x = 77,921,751.73
  5. Step 5: Solve for x
    x = 77,921,751.73/12,249.30
  6. Step 6: Final answer
    x = 6,361.32

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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.