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Finding the Fourth Proportional to 18,127.22, 27,185.07 and 12,321.14

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Solution

The fourth proportional to 18,127.22, 27,185.07 and 12,321.14 is: 18,477.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.22 : 27,185.07 = 12,321.14 : x
  2. Step 2: Convert to fraction form
    18,127.22/27,185.07 = 12,321.14/x
  3. Step 3: Cross multiply
    18,127.22x = 27,185.07 × 12,321.14
  4. Step 4: Simplify right side
    18,127.22x = 334,951,053.38
  5. Step 5: Solve for x
    x = 334,951,053.38/18,127.22
  6. Step 6: Final answer
    x = 18,477.79

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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.