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Finding the Fourth Proportional to 18,227.10, 27,330.36 and 7,547.43

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Solution

The fourth proportional to 18,227.10, 27,330.36 and 7,547.43 is: 11,316.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,227.10 : 27,330.36 = 7,547.43 : x
  2. Step 2: Convert to fraction form
    18,227.10/27,330.36 = 7,547.43/x
  3. Step 3: Cross multiply
    18,227.10x = 27,330.36 × 7,547.43
  4. Step 4: Simplify right side
    18,227.10x = 206,273,978.97
  5. Step 5: Solve for x
    x = 206,273,978.97/18,227.10
  6. Step 6: Final answer
    x = 11,316.88

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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.