Home / 10,778.52-16,167.78-3,383.63

Finding the Fourth Proportional to 10,778.52, 16,167.78 and 3,383.63

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Solution

The fourth proportional to 10,778.52, 16,167.78 and 3,383.63 is: 5,075.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.52 : 16,167.78 = 3,383.63 : x
  2. Step 2: Convert to fraction form
    10,778.52/16,167.78 = 3,383.63/x
  3. Step 3: Cross multiply
    10,778.52x = 16,167.78 × 3,383.63
  4. Step 4: Simplify right side
    10,778.52x = 54,705,785.44
  5. Step 5: Solve for x
    x = 54,705,785.44/10,778.52
  6. Step 6: Final answer
    x = 5,075.45

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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.