Home / 13,546.56-20,314.44-5,221.96

Finding the Fourth Proportional to 13,546.56, 20,314.44 and 5,221.96

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Solution

The fourth proportional to 13,546.56, 20,314.44 and 5,221.96 is: 7,830.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.56 : 20,314.44 = 5,221.96 : x
  2. Step 2: Convert to fraction form
    13,546.56/20,314.44 = 5,221.96/x
  3. Step 3: Cross multiply
    13,546.56x = 20,314.44 × 5,221.96
  4. Step 4: Simplify right side
    13,546.56x = 106,081,193.10
  5. Step 5: Solve for x
    x = 106,081,193.10/13,546.56
  6. Step 6: Final answer
    x = 7,830.86

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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.