Home / 13,918.87-20,879.60-4,558.96

Finding the Fourth Proportional to 13,918.87, 20,879.60 and 4,558.96

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Solution

The fourth proportional to 13,918.87, 20,879.60 and 4,558.96 is: 6,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.87 : 20,879.60 = 4,558.96 : x
  2. Step 2: Convert to fraction form
    13,918.87/20,879.60 = 4,558.96/x
  3. Step 3: Cross multiply
    13,918.87x = 20,879.60 × 4,558.96
  4. Step 4: Simplify right side
    13,918.87x = 95,189,261.22
  5. Step 5: Solve for x
    x = 95,189,261.22/13,918.87
  6. Step 6: Final answer
    x = 6,838.86

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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.