Home / 7,906.18-10,905.96-5,072.55

Finding the Fourth Proportional to 7,906.18, 10,905.96 and 5,072.55

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Solution

The fourth proportional to 7,906.18, 10,905.96 and 5,072.55 is: 6,997.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.18 : 10,905.96 = 5,072.55 : x
  2. Step 2: Convert to fraction form
    7,906.18/10,905.96 = 5,072.55/x
  3. Step 3: Cross multiply
    7,906.18x = 10,905.96 × 5,072.55
  4. Step 4: Simplify right side
    7,906.18x = 55,321,027.40
  5. Step 5: Solve for x
    x = 55,321,027.40/7,906.18
  6. Step 6: Final answer
    x = 6,997.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.