Home / 13,983.88-20,969.20-5,092.92

Finding the Fourth Proportional to 13,983.88, 20,969.20 and 5,092.92

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Solution

The fourth proportional to 13,983.88, 20,969.20 and 5,092.92 is: 7,636.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.88 : 20,969.20 = 5,092.92 : x
  2. Step 2: Convert to fraction form
    13,983.88/20,969.20 = 5,092.92/x
  3. Step 3: Cross multiply
    13,983.88x = 20,969.20 × 5,092.92
  4. Step 4: Simplify right side
    13,983.88x = 106,794,458.06
  5. Step 5: Solve for x
    x = 106,794,458.06/13,983.88
  6. Step 6: Final answer
    x = 7,636.97

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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.