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Finding the Fourth Proportional to 18,065.14, 27,080.09 and 7,538.19

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Solution

The fourth proportional to 18,065.14, 27,080.09 and 7,538.19 is: 11,299.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.14 : 27,080.09 = 7,538.19 : x
  2. Step 2: Convert to fraction form
    18,065.14/27,080.09 = 7,538.19/x
  3. Step 3: Cross multiply
    18,065.14x = 27,080.09 × 7,538.19
  4. Step 4: Simplify right side
    18,065.14x = 204,134,863.64
  5. Step 5: Solve for x
    x = 204,134,863.64/18,065.14
  6. Step 6: Final answer
    x = 11,299.93

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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.