Home / 13,982.07-20,976.75-5,217.06

Finding the Fourth Proportional to 13,982.07, 20,976.75 and 5,217.06

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Solution

The fourth proportional to 13,982.07, 20,976.75 and 5,217.06 is: 7,826.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.07 : 20,976.75 = 5,217.06 : x
  2. Step 2: Convert to fraction form
    13,982.07/20,976.75 = 5,217.06/x
  3. Step 3: Cross multiply
    13,982.07x = 20,976.75 × 5,217.06
  4. Step 4: Simplify right side
    13,982.07x = 109,436,963.36
  5. Step 5: Solve for x
    x = 109,436,963.36/13,982.07
  6. Step 6: Final answer
    x = 7,826.95

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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.