Home / 13,815.39-20,717.00-3,952.43

Finding the Fourth Proportional to 13,815.39, 20,717.00 and 3,952.43

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Solution

The fourth proportional to 13,815.39, 20,717.00 and 3,952.43 is: 5,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.39 : 20,717.00 = 3,952.43 : x
  2. Step 2: Convert to fraction form
    13,815.39/20,717.00 = 3,952.43/x
  3. Step 3: Cross multiply
    13,815.39x = 20,717.00 × 3,952.43
  4. Step 4: Simplify right side
    13,815.39x = 81,882,368.96
  5. Step 5: Solve for x
    x = 81,882,368.96/13,815.39
  6. Step 6: Final answer
    x = 5,926.90

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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.