Home / 13,944.31-20,914.62-5,178.04

Finding the Fourth Proportional to 13,944.31, 20,914.62 and 5,178.04

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Solution

The fourth proportional to 13,944.31, 20,914.62 and 5,178.04 is: 7,766.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.31 : 20,914.62 = 5,178.04 : x
  2. Step 2: Convert to fraction form
    13,944.31/20,914.62 = 5,178.04/x
  3. Step 3: Cross multiply
    13,944.31x = 20,914.62 × 5,178.04
  4. Step 4: Simplify right side
    13,944.31x = 108,296,738.94
  5. Step 5: Solve for x
    x = 108,296,738.94/13,944.31
  6. Step 6: Final answer
    x = 7,766.37

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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.