Home / 14,081.31-21,121.97-3,692.25

Finding the Fourth Proportional to 14,081.31, 21,121.97 and 3,692.25

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Solution

The fourth proportional to 14,081.31, 21,121.97 and 3,692.25 is: 5,538.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.31 : 21,121.97 = 3,692.25 : x
  2. Step 2: Convert to fraction form
    14,081.31/21,121.97 = 3,692.25/x
  3. Step 3: Cross multiply
    14,081.31x = 21,121.97 × 3,692.25
  4. Step 4: Simplify right side
    14,081.31x = 77,987,575.27
  5. Step 5: Solve for x
    x = 77,987,575.27/14,081.31
  6. Step 6: Final answer
    x = 5,538.38

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Similar ratio
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1.5x scale

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.