Home / 11,286.16-16,931.96-3,388.66

Finding the Fourth Proportional to 11,286.16, 16,931.96 and 3,388.66

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Solution

The fourth proportional to 11,286.16, 16,931.96 and 3,388.66 is: 5,083.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.16 : 16,931.96 = 3,388.66 : x
  2. Step 2: Convert to fraction form
    11,286.16/16,931.96 = 3,388.66/x
  3. Step 3: Cross multiply
    11,286.16x = 16,931.96 × 3,388.66
  4. Step 4: Simplify right side
    11,286.16x = 57,376,655.57
  5. Step 5: Solve for x
    x = 57,376,655.57/11,286.16
  6. Step 6: Final answer
    x = 5,083.81

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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.