Home / 13,944.70-20,917.05-8,754.22

Finding the Fourth Proportional to 13,944.70, 20,917.05 and 8,754.22

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Solution

The fourth proportional to 13,944.70, 20,917.05 and 8,754.22 is: 13,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.70 : 20,917.05 = 8,754.22 : x
  2. Step 2: Convert to fraction form
    13,944.70/20,917.05 = 8,754.22/x
  3. Step 3: Cross multiply
    13,944.70x = 20,917.05 × 8,754.22
  4. Step 4: Simplify right side
    13,944.70x = 183,112,352.87
  5. Step 5: Solve for x
    x = 183,112,352.87/13,944.70
  6. Step 6: Final answer
    x = 13,131.33

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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.