Home / 13,481.00-20,221.55-4,120.98

Finding the Fourth Proportional to 13,481.00, 20,221.55 and 4,120.98

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Solution

The fourth proportional to 13,481.00, 20,221.55 and 4,120.98 is: 6,181.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.00 : 20,221.55 = 4,120.98 : x
  2. Step 2: Convert to fraction form
    13,481.00/20,221.55 = 4,120.98/x
  3. Step 3: Cross multiply
    13,481.00x = 20,221.55 × 4,120.98
  4. Step 4: Simplify right side
    13,481.00x = 83,332,592.82
  5. Step 5: Solve for x
    x = 83,332,592.82/13,481.00
  6. Step 6: Final answer
    x = 6,181.49

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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.