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Finding the Fourth Proportional to 18,428.11, 27,632.44 and 8,034.19

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Solution

The fourth proportional to 18,428.11, 27,632.44 and 8,034.19 is: 12,047.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.11 : 27,632.44 = 8,034.19 : x
  2. Step 2: Convert to fraction form
    18,428.11/27,632.44 = 8,034.19/x
  3. Step 3: Cross multiply
    18,428.11x = 27,632.44 × 8,034.19
  4. Step 4: Simplify right side
    18,428.11x = 222,004,214.09
  5. Step 5: Solve for x
    x = 222,004,214.09/18,428.11
  6. Step 6: Final answer
    x = 12,047.04

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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.