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Finding the Fourth Proportional to 18,191.84, 27,275.67 and 7,099.56

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Solution

The fourth proportional to 18,191.84, 27,275.67 and 7,099.56 is: 10,644.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191.84 : 27,275.67 = 7,099.56 : x
  2. Step 2: Convert to fraction form
    18,191.84/27,275.67 = 7,099.56/x
  3. Step 3: Cross multiply
    18,191.84x = 27,275.67 × 7,099.56
  4. Step 4: Simplify right side
    18,191.84x = 193,645,255.71
  5. Step 5: Solve for x
    x = 193,645,255.71/18,191.84
  6. Step 6: Final answer
    x = 10,644.62

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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.