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Finding the Fourth Proportional to 18,396.68, 27,573.29 and 7,863.62

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Solution

The fourth proportional to 18,396.68, 27,573.29 and 7,863.62 is: 11,786.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396.68 : 27,573.29 = 7,863.62 : x
  2. Step 2: Convert to fraction form
    18,396.68/27,573.29 = 7,863.62/x
  3. Step 3: Cross multiply
    18,396.68x = 27,573.29 × 7,863.62
  4. Step 4: Simplify right side
    18,396.68x = 216,825,874.71
  5. Step 5: Solve for x
    x = 216,825,874.71/18,396.68
  6. Step 6: Final answer
    x = 11,786.14

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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.