Home / 7,930.72-11,896.24-2,087.36

Finding the Fourth Proportional to 7,930.72, 11,896.24 and 2,087.36

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Solution

The fourth proportional to 7,930.72, 11,896.24 and 2,087.36 is: 3,131.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.72 : 11,896.24 = 2,087.36 : x
  2. Step 2: Convert to fraction form
    7,930.72/11,896.24 = 2,087.36/x
  3. Step 3: Cross multiply
    7,930.72x = 11,896.24 × 2,087.36
  4. Step 4: Simplify right side
    7,930.72x = 24,831,735.53
  5. Step 5: Solve for x
    x = 24,831,735.53/7,930.72
  6. Step 6: Final answer
    x = 3,131.08

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1.5x scale

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.