Home / 13,342.12-20,016.03-3,982.87

Finding the Fourth Proportional to 13,342.12, 20,016.03 and 3,982.87

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Solution

The fourth proportional to 13,342.12, 20,016.03 and 3,982.87 is: 5,975.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.12 : 20,016.03 = 3,982.87 : x
  2. Step 2: Convert to fraction form
    13,342.12/20,016.03 = 3,982.87/x
  3. Step 3: Cross multiply
    13,342.12x = 20,016.03 × 3,982.87
  4. Step 4: Simplify right side
    13,342.12x = 79,721,285.36
  5. Step 5: Solve for x
    x = 79,721,285.36/13,342.12
  6. Step 6: Final answer
    x = 5,975.16

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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.