Home / 7,687.44-11,512.26-4,905.90

Finding the Fourth Proportional to 7,687.44, 11,512.26 and 4,905.90

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Solution

The fourth proportional to 7,687.44, 11,512.26 and 4,905.90 is: 7,346.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.44 : 11,512.26 = 4,905.90 : x
  2. Step 2: Convert to fraction form
    7,687.44/11,512.26 = 4,905.90/x
  3. Step 3: Cross multiply
    7,687.44x = 11,512.26 × 4,905.90
  4. Step 4: Simplify right side
    7,687.44x = 56,477,996.33
  5. Step 5: Solve for x
    x = 56,477,996.33/7,687.44
  6. Step 6: Final answer
    x = 7,346.79

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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.