Home / 13,922.72-20,879.97-4,058.90

Finding the Fourth Proportional to 13,922.72, 20,879.97 and 4,058.90

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Solution

The fourth proportional to 13,922.72, 20,879.97 and 4,058.90 is: 6,087.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.72 : 20,879.97 = 4,058.90 : x
  2. Step 2: Convert to fraction form
    13,922.72/20,879.97 = 4,058.90/x
  3. Step 3: Cross multiply
    13,922.72x = 20,879.97 × 4,058.90
  4. Step 4: Simplify right side
    13,922.72x = 84,749,710.23
  5. Step 5: Solve for x
    x = 84,749,710.23/13,922.72
  6. Step 6: Final answer
    x = 6,087.15

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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.