Home / 6,615.60-9,914.40-3,330.96

Finding the Fourth Proportional to 6,615.60, 9,914.40 and 3,330.96

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Solution

The fourth proportional to 6,615.60, 9,914.40 and 3,330.96 is: 4,991.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.60 : 9,914.40 = 3,330.96 : x
  2. Step 2: Convert to fraction form
    6,615.60/9,914.40 = 3,330.96/x
  3. Step 3: Cross multiply
    6,615.60x = 9,914.40 × 3,330.96
  4. Step 4: Simplify right side
    6,615.60x = 33,024,469.82
  5. Step 5: Solve for x
    x = 33,024,469.82/6,615.60
  6. Step 6: Final answer
    x = 4,991.91

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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.