Home / 11,778.18-17,667.27-3,992.46

Finding the Fourth Proportional to 11,778.18, 17,667.27 and 3,992.46

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Solution

The fourth proportional to 11,778.18, 17,667.27 and 3,992.46 is: 5,988.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.18 : 17,667.27 = 3,992.46 : x
  2. Step 2: Convert to fraction form
    11,778.18/17,667.27 = 3,992.46/x
  3. Step 3: Cross multiply
    11,778.18x = 17,667.27 × 3,992.46
  4. Step 4: Simplify right side
    11,778.18x = 70,535,868.78
  5. Step 5: Solve for x
    x = 70,535,868.78/11,778.18
  6. Step 6: Final answer
    x = 5,988.69

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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.