Home / 13,813.43-20,719.86-3,952.64

Finding the Fourth Proportional to 13,813.43, 20,719.86 and 3,952.64

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Solution

The fourth proportional to 13,813.43, 20,719.86 and 3,952.64 is: 5,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813.43 : 20,719.86 = 3,952.64 : x
  2. Step 2: Convert to fraction form
    13,813.43/20,719.86 = 3,952.64/x
  3. Step 3: Cross multiply
    13,813.43x = 20,719.86 × 3,952.64
  4. Step 4: Simplify right side
    13,813.43x = 81,898,147.43
  5. Step 5: Solve for x
    x = 81,898,147.43/13,813.43
  6. Step 6: Final answer
    x = 5,928.88

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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.