Home / 11,776.07-17,667.18-3,879.79

Finding the Fourth Proportional to 11,776.07, 17,667.18 and 3,879.79

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Solution

The fourth proportional to 11,776.07, 17,667.18 and 3,879.79 is: 5,820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,776.07 : 17,667.18 = 3,879.79 : x
  2. Step 2: Convert to fraction form
    11,776.07/17,667.18 = 3,879.79/x
  3. Step 3: Cross multiply
    11,776.07x = 17,667.18 × 3,879.79
  4. Step 4: Simplify right side
    11,776.07x = 68,544,904.12
  5. Step 5: Solve for x
    x = 68,544,904.12/11,776.07
  6. Step 6: Final answer
    x = 5,820.69

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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.