Home / 18,236.16-27,327.84-9,909.12

Finding the Fourth Proportional to 18,236.16, 27,327.84 and 9,909.12

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Solution

The fourth proportional to 18,236.16, 27,327.84 and 9,909.12 is: 14,849.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,236.16 : 27,327.84 = 9,909.12 : x
  2. Step 2: Convert to fraction form
    18,236.16/27,327.84 = 9,909.12/x
  3. Step 3: Cross multiply
    18,236.16x = 27,327.84 × 9,909.12
  4. Step 4: Simplify right side
    18,236.16x = 270,794,845.90
  5. Step 5: Solve for x
    x = 270,794,845.90/18,236.16
  6. Step 6: Final answer
    x = 14,849.33

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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.