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Finding the Fourth Proportional to 18,575.16, 27,870.04 and 8,179.62

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Solution

The fourth proportional to 18,575.16, 27,870.04 and 8,179.62 is: 12,272.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.16 : 27,870.04 = 8,179.62 : x
  2. Step 2: Convert to fraction form
    18,575.16/27,870.04 = 8,179.62/x
  3. Step 3: Cross multiply
    18,575.16x = 27,870.04 × 8,179.62
  4. Step 4: Simplify right side
    18,575.16x = 227,966,336.58
  5. Step 5: Solve for x
    x = 227,966,336.58/18,575.16
  6. Step 6: Final answer
    x = 12,272.64

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.