Home / 7,990.56-11,029.14-5,007.96

Finding the Fourth Proportional to 7,990.56, 11,029.14 and 5,007.96

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Solution

The fourth proportional to 7,990.56, 11,029.14 and 5,007.96 is: 6,912.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.56 : 11,029.14 = 5,007.96 : x
  2. Step 2: Convert to fraction form
    7,990.56/11,029.14 = 5,007.96/x
  3. Step 3: Cross multiply
    7,990.56x = 11,029.14 × 5,007.96
  4. Step 4: Simplify right side
    7,990.56x = 55,233,491.95
  5. Step 5: Solve for x
    x = 55,233,491.95/7,990.56
  6. Step 6: Final answer
    x = 6,912.34

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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.