Home / 13,919.37-20,879.05-4,058.43

Finding the Fourth Proportional to 13,919.37, 20,879.05 and 4,058.43

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Solution

The fourth proportional to 13,919.37, 20,879.05 and 4,058.43 is: 6,087.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.37 : 20,879.05 = 4,058.43 : x
  2. Step 2: Convert to fraction form
    13,919.37/20,879.05 = 4,058.43/x
  3. Step 3: Cross multiply
    13,919.37x = 20,879.05 × 4,058.43
  4. Step 4: Simplify right side
    13,919.37x = 84,736,162.89
  5. Step 5: Solve for x
    x = 84,736,162.89/13,919.37
  6. Step 6: Final answer
    x = 6,087.64

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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.