Home / 18,480.12-27,727.06-11,089.88

Finding the Fourth Proportional to 18,480.12, 27,727.06 and 11,089.88

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Solution

The fourth proportional to 18,480.12, 27,727.06 and 11,089.88 is: 16,638.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,480.12 : 27,727.06 = 11,089.88 : x
  2. Step 2: Convert to fraction form
    18,480.12/27,727.06 = 11,089.88/x
  3. Step 3: Cross multiply
    18,480.12x = 27,727.06 × 11,089.88
  4. Step 4: Simplify right side
    18,480.12x = 307,489,768.15
  5. Step 5: Solve for x
    x = 307,489,768.15/18,480.12
  6. Step 6: Final answer
    x = 16,638.95

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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.