Home / 14,081.21-19,436.92-8,115.26

Finding the Fourth Proportional to 14,081.21, 19,436.92 and 8,115.26

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Solution

The fourth proportional to 14,081.21, 19,436.92 and 8,115.26 is: 11,201.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.21 : 19,436.92 = 8,115.26 : x
  2. Step 2: Convert to fraction form
    14,081.21/19,436.92 = 8,115.26/x
  3. Step 3: Cross multiply
    14,081.21x = 19,436.92 × 8,115.26
  4. Step 4: Simplify right side
    14,081.21x = 157,735,562.21
  5. Step 5: Solve for x
    x = 157,735,562.21/14,081.21
  6. Step 6: Final answer
    x = 11,201.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.