Home / 13,811.93-20,717.61-3,951.14

Finding the Fourth Proportional to 13,811.93, 20,717.61 and 3,951.14

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Solution

The fourth proportional to 13,811.93, 20,717.61 and 3,951.14 is: 5,926.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.93 : 20,717.61 = 3,951.14 : x
  2. Step 2: Convert to fraction form
    13,811.93/20,717.61 = 3,951.14/x
  3. Step 3: Cross multiply
    13,811.93x = 20,717.61 × 3,951.14
  4. Step 4: Simplify right side
    13,811.93x = 81,858,177.58
  5. Step 5: Solve for x
    x = 81,858,177.58/13,811.93
  6. Step 6: Final answer
    x = 5,926.63

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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.