Home / 12,091.52-18,132.44-3,768.80

Finding the Fourth Proportional to 12,091.52, 18,132.44 and 3,768.80

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Solution

The fourth proportional to 12,091.52, 18,132.44 and 3,768.80 is: 5,651.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,091.52 : 18,132.44 = 3,768.80 : x
  2. Step 2: Convert to fraction form
    12,091.52/18,132.44 = 3,768.80/x
  3. Step 3: Cross multiply
    12,091.52x = 18,132.44 × 3,768.80
  4. Step 4: Simplify right side
    12,091.52x = 68,337,539.87
  5. Step 5: Solve for x
    x = 68,337,539.87/12,091.52
  6. Step 6: Final answer
    x = 5,651.69

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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.