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Finding the Fourth Proportional to 18,610.56, 27,911.12 and 7,513.97

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Solution

The fourth proportional to 18,610.56, 27,911.12 and 7,513.97 is: 11,269.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.56 : 27,911.12 = 7,513.97 : x
  2. Step 2: Convert to fraction form
    18,610.56/27,911.12 = 7,513.97/x
  3. Step 3: Cross multiply
    18,610.56x = 27,911.12 × 7,513.97
  4. Step 4: Simplify right side
    18,610.56x = 209,723,141.22
  5. Step 5: Solve for x
    x = 209,723,141.22/18,610.56
  6. Step 6: Final answer
    x = 11,269.04

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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.