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Finding the Fourth Proportional to 18,882.73, 28,322.46 and 8,885.10

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Solution

The fourth proportional to 18,882.73, 28,322.46 and 8,885.10 is: 13,326.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882.73 : 28,322.46 = 8,885.10 : x
  2. Step 2: Convert to fraction form
    18,882.73/28,322.46 = 8,885.10/x
  3. Step 3: Cross multiply
    18,882.73x = 28,322.46 × 8,885.10
  4. Step 4: Simplify right side
    18,882.73x = 251,647,995.56
  5. Step 5: Solve for x
    x = 251,647,995.56/18,882.73
  6. Step 6: Final answer
    x = 13,326.89

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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.