Home / 11,185.80-16,781.15-3,395.22

Finding the Fourth Proportional to 11,185.80, 16,781.15 and 3,395.22

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Solution

The fourth proportional to 11,185.80, 16,781.15 and 3,395.22 is: 5,093.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,185.80 : 16,781.15 = 3,395.22 : x
  2. Step 2: Convert to fraction form
    11,185.80/16,781.15 = 3,395.22/x
  3. Step 3: Cross multiply
    11,185.80x = 16,781.15 × 3,395.22
  4. Step 4: Simplify right side
    11,185.80x = 56,975,696.10
  5. Step 5: Solve for x
    x = 56,975,696.10/11,185.80
  6. Step 6: Final answer
    x = 5,093.57

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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.