Home / 7,991.25-11,028.42-4,635.11

Finding the Fourth Proportional to 7,991.25, 11,028.42 and 4,635.11

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Solution

The fourth proportional to 7,991.25, 11,028.42 and 4,635.11 is: 6,396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.25 : 11,028.42 = 4,635.11 : x
  2. Step 2: Convert to fraction form
    7,991.25/11,028.42 = 4,635.11/x
  3. Step 3: Cross multiply
    7,991.25x = 11,028.42 × 4,635.11
  4. Step 4: Simplify right side
    7,991.25x = 51,117,939.83
  5. Step 5: Solve for x
    x = 51,117,939.83/7,991.25
  6. Step 6: Final answer
    x = 6,396.74

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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.