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Finding the Fourth Proportional to 18,079.58, 27,136.88 and 8,726.18

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Solution

The fourth proportional to 18,079.58, 27,136.88 and 8,726.18 is: 13,097.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,079.58 : 27,136.88 = 8,726.18 : x
  2. Step 2: Convert to fraction form
    18,079.58/27,136.88 = 8,726.18/x
  3. Step 3: Cross multiply
    18,079.58x = 27,136.88 × 8,726.18
  4. Step 4: Simplify right side
    18,079.58x = 236,801,185.65
  5. Step 5: Solve for x
    x = 236,801,185.65/18,079.58
  6. Step 6: Final answer
    x = 13,097.71

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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.