Home / 12,768.22-19,137.75-5,361.58

Finding the Fourth Proportional to 12,768.22, 19,137.75 and 5,361.58

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Solution

The fourth proportional to 12,768.22, 19,137.75 and 5,361.58 is: 8,036.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.22 : 19,137.75 = 5,361.58 : x
  2. Step 2: Convert to fraction form
    12,768.22/19,137.75 = 5,361.58/x
  3. Step 3: Cross multiply
    12,768.22x = 19,137.75 × 5,361.58
  4. Step 4: Simplify right side
    12,768.22x = 102,608,577.65
  5. Step 5: Solve for x
    x = 102,608,577.65/12,768.22
  6. Step 6: Final answer
    x = 8,036.25

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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.