Home / 12,081.08-18,121.08-3,760.76

Finding the Fourth Proportional to 12,081.08, 18,121.08 and 3,760.76

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Solution

The fourth proportional to 12,081.08, 18,121.08 and 3,760.76 is: 5,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.08 : 18,121.08 = 3,760.76 : x
  2. Step 2: Convert to fraction form
    12,081.08/18,121.08 = 3,760.76/x
  3. Step 3: Cross multiply
    12,081.08x = 18,121.08 × 3,760.76
  4. Step 4: Simplify right side
    12,081.08x = 68,149,032.82
  5. Step 5: Solve for x
    x = 68,149,032.82/12,081.08
  6. Step 6: Final answer
    x = 5,640.97

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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.