Home / 13,817.19-20,727.31-3,958.08

Finding the Fourth Proportional to 13,817.19, 20,727.31 and 3,958.08

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Solution

The fourth proportional to 13,817.19, 20,727.31 and 3,958.08 is: 5,937.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.19 : 20,727.31 = 3,958.08 : x
  2. Step 2: Convert to fraction form
    13,817.19/20,727.31 = 3,958.08/x
  3. Step 3: Cross multiply
    13,817.19x = 20,727.31 × 3,958.08
  4. Step 4: Simplify right side
    13,817.19x = 82,040,351.16
  5. Step 5: Solve for x
    x = 82,040,351.16/13,817.19
  6. Step 6: Final answer
    x = 5,937.56

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1.5x scale

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.