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Finding the Fourth Proportional to 18,882.33, 28,311 and 10,563.22

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Solution

The fourth proportional to 18,882.33, 28,311 and 10,563.22 is: 15,837.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882.33 : 28,311 = 10,563.22 : x
  2. Step 2: Convert to fraction form
    18,882.33/28,311 = 10,563.22/x
  3. Step 3: Cross multiply
    18,882.33x = 28,311 × 10,563.22
  4. Step 4: Simplify right side
    18,882.33x = 299,055,321.42
  5. Step 5: Solve for x
    x = 299,055,321.42/18,882.33
  6. Step 6: Final answer
    x = 15,837.84

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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.