Home / 11,118.36-16,661.03-6,181.21

Finding the Fourth Proportional to 11,118.36, 16,661.03 and 6,181.21

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Solution

The fourth proportional to 11,118.36, 16,661.03 and 6,181.21 is: 9,262.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.36 : 16,661.03 = 6,181.21 : x
  2. Step 2: Convert to fraction form
    11,118.36/16,661.03 = 6,181.21/x
  3. Step 3: Cross multiply
    11,118.36x = 16,661.03 × 6,181.21
  4. Step 4: Simplify right side
    11,118.36x = 102,985,257.39
  5. Step 5: Solve for x
    x = 102,985,257.39/11,118.36
  6. Step 6: Final answer
    x = 9,262.63

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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.