Home / 12,745.22-19,122.89-5,723.33

Finding the Fourth Proportional to 12,745.22, 19,122.89 and 5,723.33

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Solution

The fourth proportional to 12,745.22, 19,122.89 and 5,723.33 is: 8,587.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745.22 : 19,122.89 = 5,723.33 : x
  2. Step 2: Convert to fraction form
    12,745.22/19,122.89 = 5,723.33/x
  3. Step 3: Cross multiply
    12,745.22x = 19,122.89 × 5,723.33
  4. Step 4: Simplify right side
    12,745.22x = 109,446,485.79
  5. Step 5: Solve for x
    x = 109,446,485.79/12,745.22
  6. Step 6: Final answer
    x = 8,587.26

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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.