Home / 11,185.80-16,778.43-4,612.38

Finding the Fourth Proportional to 11,185.80, 16,778.43 and 4,612.38

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Solution

The fourth proportional to 11,185.80, 16,778.43 and 4,612.38 is: 6,918.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,185.80 : 16,778.43 = 4,612.38 : x
  2. Step 2: Convert to fraction form
    11,185.80/16,778.43 = 4,612.38/x
  3. Step 3: Cross multiply
    11,185.80x = 16,778.43 × 4,612.38
  4. Step 4: Simplify right side
    11,185.80x = 77,388,494.96
  5. Step 5: Solve for x
    x = 77,388,494.96/11,185.80
  6. Step 6: Final answer
    x = 6,918.46

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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.