Home / 13,976.13-20,984.96-5,672.42

Finding the Fourth Proportional to 13,976.13, 20,984.96 and 5,672.42

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Solution

The fourth proportional to 13,976.13, 20,984.96 and 5,672.42 is: 8,517.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.13 : 20,984.96 = 5,672.42 : x
  2. Step 2: Convert to fraction form
    13,976.13/20,984.96 = 5,672.42/x
  3. Step 3: Cross multiply
    13,976.13x = 20,984.96 × 5,672.42
  4. Step 4: Simplify right side
    13,976.13x = 119,035,506.80
  5. Step 5: Solve for x
    x = 119,035,506.80/13,976.13
  6. Step 6: Final answer
    x = 8,517.06

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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.