Home / 12,121.11-18,179.60-3,353.97

Finding the Fourth Proportional to 12,121.11, 18,179.60 and 3,353.97

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Solution

The fourth proportional to 12,121.11, 18,179.60 and 3,353.97 is: 5,030.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121.11 : 18,179.60 = 3,353.97 : x
  2. Step 2: Convert to fraction form
    12,121.11/18,179.60 = 3,353.97/x
  3. Step 3: Cross multiply
    12,121.11x = 18,179.60 × 3,353.97
  4. Step 4: Simplify right side
    12,121.11x = 60,973,725.34
  5. Step 5: Solve for x
    x = 60,973,725.34/12,121.11
  6. Step 6: Final answer
    x = 5,030.38

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1.5x scale

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.