Home / 10,778.58-16,167.87-3,383.61

Finding the Fourth Proportional to 10,778.58, 16,167.87 and 3,383.61

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Solution

The fourth proportional to 10,778.58, 16,167.87 and 3,383.61 is: 5,075.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.58 : 16,167.87 = 3,383.61 : x
  2. Step 2: Convert to fraction form
    10,778.58/16,167.87 = 3,383.61/x
  3. Step 3: Cross multiply
    10,778.58x = 16,167.87 × 3,383.61
  4. Step 4: Simplify right side
    10,778.58x = 54,705,766.61
  5. Step 5: Solve for x
    x = 54,705,766.61/10,778.58
  6. Step 6: Final answer
    x = 5,075.42

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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.