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Finding the Fourth Proportional to 18,266.92, 27,405.11 and 5,119.41

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Solution

The fourth proportional to 18,266.92, 27,405.11 and 5,119.41 is: 7,680.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.92 : 27,405.11 = 5,119.41 : x
  2. Step 2: Convert to fraction form
    18,266.92/27,405.11 = 5,119.41/x
  3. Step 3: Cross multiply
    18,266.92x = 27,405.11 × 5,119.41
  4. Step 4: Simplify right side
    18,266.92x = 140,297,994.19
  5. Step 5: Solve for x
    x = 140,297,994.19/18,266.92
  6. Step 6: Final answer
    x = 7,680.44

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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.