Home / 11,176.79-16,759.40-3,778.61

Finding the Fourth Proportional to 11,176.79, 16,759.40 and 3,778.61

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Solution

The fourth proportional to 11,176.79, 16,759.40 and 3,778.61 is: 5,665.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,176.79 : 16,759.40 = 3,778.61 : x
  2. Step 2: Convert to fraction form
    11,176.79/16,759.40 = 3,778.61/x
  3. Step 3: Cross multiply
    11,176.79x = 16,759.40 × 3,778.61
  4. Step 4: Simplify right side
    11,176.79x = 63,327,133.74
  5. Step 5: Solve for x
    x = 63,327,133.74/11,176.79
  6. Step 6: Final answer
    x = 5,665.95

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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.