Home / 10,778.66-16,167.98-3,383.70

Finding the Fourth Proportional to 10,778.66, 16,167.98 and 3,383.70

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Solution

The fourth proportional to 10,778.66, 16,167.98 and 3,383.70 is: 5,075.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.66 : 16,167.98 = 3,383.70 : x
  2. Step 2: Convert to fraction form
    10,778.66/16,167.98 = 3,383.70/x
  3. Step 3: Cross multiply
    10,778.66x = 16,167.98 × 3,383.70
  4. Step 4: Simplify right side
    10,778.66x = 54,707,593.93
  5. Step 5: Solve for x
    x = 54,707,593.93/10,778.66
  6. Step 6: Final answer
    x = 5,075.55

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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.