Home / 18,045.33-27,071.40-8,185.38

Finding the Fourth Proportional to 18,045.33, 27,071.40 and 8,185.38

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Solution

The fourth proportional to 18,045.33, 27,071.40 and 8,185.38 is: 12,279.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,045.33 : 27,071.40 = 8,185.38 : x
  2. Step 2: Convert to fraction form
    18,045.33/27,071.40 = 8,185.38/x
  3. Step 3: Cross multiply
    18,045.33x = 27,071.40 × 8,185.38
  4. Step 4: Simplify right side
    18,045.33x = 221,589,625.31
  5. Step 5: Solve for x
    x = 221,589,625.31/18,045.33
  6. Step 6: Final answer
    x = 12,279.61

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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.