Home / 11,778.35-17,667.54-4,381.85

Finding the Fourth Proportional to 11,778.35, 17,667.54 and 4,381.85

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Solution

The fourth proportional to 11,778.35, 17,667.54 and 4,381.85 is: 6,572.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.35 : 17,667.54 = 4,381.85 : x
  2. Step 2: Convert to fraction form
    11,778.35/17,667.54 = 4,381.85/x
  3. Step 3: Cross multiply
    11,778.35x = 17,667.54 × 4,381.85
  4. Step 4: Simplify right side
    11,778.35x = 77,416,510.15
  5. Step 5: Solve for x
    x = 77,416,510.15/11,778.35
  6. Step 6: Final answer
    x = 6,572.78

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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.