Home / 12,135.62-18,201.61-3,369.40

Finding the Fourth Proportional to 12,135.62, 18,201.61 and 3,369.40

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Solution

The fourth proportional to 12,135.62, 18,201.61 and 3,369.40 is: 5,053.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.62 : 18,201.61 = 3,369.40 : x
  2. Step 2: Convert to fraction form
    12,135.62/18,201.61 = 3,369.40/x
  3. Step 3: Cross multiply
    12,135.62x = 18,201.61 × 3,369.40
  4. Step 4: Simplify right side
    12,135.62x = 61,328,463.44
  5. Step 5: Solve for x
    x = 61,328,463.44/12,135.62
  6. Step 6: Final answer
    x = 5,053.59

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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.