Home / 12,091.66-18,143.07-5,519.86

Finding the Fourth Proportional to 12,091.66, 18,143.07 and 5,519.86

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Solution

The fourth proportional to 12,091.66, 18,143.07 and 5,519.86 is: 8,282.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,091.66 : 18,143.07 = 5,519.86 : x
  2. Step 2: Convert to fraction form
    12,091.66/18,143.07 = 5,519.86/x
  3. Step 3: Cross multiply
    12,091.66x = 18,143.07 × 5,519.86
  4. Step 4: Simplify right side
    12,091.66x = 100,147,206.37
  5. Step 5: Solve for x
    x = 100,147,206.37/12,091.66
  6. Step 6: Final answer
    x = 8,282.34

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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.