Home / 12,134.89-18,202.65-3,369.79

Finding the Fourth Proportional to 12,134.89, 18,202.65 and 3,369.79

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Solution

The fourth proportional to 12,134.89, 18,202.65 and 3,369.79 is: 5,054.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134.89 : 18,202.65 = 3,369.79 : x
  2. Step 2: Convert to fraction form
    12,134.89/18,202.65 = 3,369.79/x
  3. Step 3: Cross multiply
    12,134.89x = 18,202.65 × 3,369.79
  4. Step 4: Simplify right side
    12,134.89x = 61,339,107.94
  5. Step 5: Solve for x
    x = 61,339,107.94/12,134.89
  6. Step 6: Final answer
    x = 5,054.77

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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.