Home / 13,917.80-20,879.62-4,557.11

Finding the Fourth Proportional to 13,917.80, 20,879.62 and 4,557.11

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Solution

The fourth proportional to 13,917.80, 20,879.62 and 4,557.11 is: 6,836.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.80 : 20,879.62 = 4,557.11 : x
  2. Step 2: Convert to fraction form
    13,917.80/20,879.62 = 4,557.11/x
  3. Step 3: Cross multiply
    13,917.80x = 20,879.62 × 4,557.11
  4. Step 4: Simplify right side
    13,917.80x = 95,150,609.31
  5. Step 5: Solve for x
    x = 95,150,609.31/13,917.80
  6. Step 6: Final answer
    x = 6,836.61

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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.