Home / 11,187.21-16,781.19-3,396

Finding the Fourth Proportional to 11,187.21, 16,781.19 and 3,396

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Solution

The fourth proportional to 11,187.21, 16,781.19 and 3,396 is: 5,094.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.21 : 16,781.19 = 3,396 : x
  2. Step 2: Convert to fraction form
    11,187.21/16,781.19 = 3,396/x
  3. Step 3: Cross multiply
    11,187.21x = 16,781.19 × 3,396
  4. Step 4: Simplify right side
    11,187.21x = 56,988,921.24
  5. Step 5: Solve for x
    x = 56,988,921.24/11,187.21
  6. Step 6: Final answer
    x = 5,094.11

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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.