Home / 13,922.82-20,837.84-11,136.42

Finding the Fourth Proportional to 13,922.82, 20,837.84 and 11,136.42

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Solution

The fourth proportional to 13,922.82, 20,837.84 and 11,136.42 is: 16,667.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.82 : 20,837.84 = 11,136.42 : x
  2. Step 2: Convert to fraction form
    13,922.82/20,837.84 = 11,136.42/x
  3. Step 3: Cross multiply
    13,922.82x = 20,837.84 × 11,136.42
  4. Step 4: Simplify right side
    13,922.82x = 232,058,938.13
  5. Step 5: Solve for x
    x = 232,058,938.13/13,922.82
  6. Step 6: Final answer
    x = 16,667.52

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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.