Home / 11,185.38-16,778.88-3,394.17

Finding the Fourth Proportional to 11,185.38, 16,778.88 and 3,394.17

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Solution

The fourth proportional to 11,185.38, 16,778.88 and 3,394.17 is: 5,091.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,185.38 : 16,778.88 = 3,394.17 : x
  2. Step 2: Convert to fraction form
    11,185.38/16,778.88 = 3,394.17/x
  3. Step 3: Cross multiply
    11,185.38x = 16,778.88 × 3,394.17
  4. Step 4: Simplify right side
    11,185.38x = 56,950,371.13
  5. Step 5: Solve for x
    x = 56,950,371.13/11,185.38
  6. Step 6: Final answer
    x = 5,091.50

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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.