Home / 13,914.03-20,879.24-5,155.05

Finding the Fourth Proportional to 13,914.03, 20,879.24 and 5,155.05

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Solution

The fourth proportional to 13,914.03, 20,879.24 and 5,155.05 is: 7,735.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.03 : 20,879.24 = 5,155.05 : x
  2. Step 2: Convert to fraction form
    13,914.03/20,879.24 = 5,155.05/x
  3. Step 3: Cross multiply
    13,914.03x = 20,879.24 × 5,155.05
  4. Step 4: Simplify right side
    13,914.03x = 107,633,500.39
  5. Step 5: Solve for x
    x = 107,633,500.39/13,914.03
  6. Step 6: Final answer
    x = 7,735.61

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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.