Home / 12,119.44-18,179.52-3,355

Finding the Fourth Proportional to 12,119.44, 18,179.52 and 3,355

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Solution

The fourth proportional to 12,119.44, 18,179.52 and 3,355 is: 5,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.44 : 18,179.52 = 3,355 : x
  2. Step 2: Convert to fraction form
    12,119.44/18,179.52 = 3,355/x
  3. Step 3: Cross multiply
    12,119.44x = 18,179.52 × 3,355
  4. Step 4: Simplify right side
    12,119.44x = 60,992,289.60
  5. Step 5: Solve for x
    x = 60,992,289.60/12,119.44
  6. Step 6: Final answer
    x = 5,032.60

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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.