Home / 11,185.31-16,778.07-3,394.13

Finding the Fourth Proportional to 11,185.31, 16,778.07 and 3,394.13

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Solution

The fourth proportional to 11,185.31, 16,778.07 and 3,394.13 is: 5,091.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,185.31 : 16,778.07 = 3,394.13 : x
  2. Step 2: Convert to fraction form
    11,185.31/16,778.07 = 3,394.13/x
  3. Step 3: Cross multiply
    11,185.31x = 16,778.07 × 3,394.13
  4. Step 4: Simplify right side
    11,185.31x = 56,946,866.84
  5. Step 5: Solve for x
    x = 56,946,866.84/11,185.31
  6. Step 6: Final answer
    x = 5,091.22

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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.