Home / 7,912.82-10,921.96-5,226

Finding the Fourth Proportional to 7,912.82, 10,921.96 and 5,226

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Solution

The fourth proportional to 7,912.82, 10,921.96 and 5,226 is: 7,213.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.82 : 10,921.96 = 5,226 : x
  2. Step 2: Convert to fraction form
    7,912.82/10,921.96 = 5,226/x
  3. Step 3: Cross multiply
    7,912.82x = 10,921.96 × 5,226
  4. Step 4: Simplify right side
    7,912.82x = 57,078,162.96
  5. Step 5: Solve for x
    x = 57,078,162.96/7,912.82
  6. Step 6: Final answer
    x = 7,213.38

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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.