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Finding the Fourth Proportional to 18,294.92, 27,442.46 and 5,147.48

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Solution

The fourth proportional to 18,294.92, 27,442.46 and 5,147.48 is: 7,721.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.92 : 27,442.46 = 5,147.48 : x
  2. Step 2: Convert to fraction form
    18,294.92/27,442.46 = 5,147.48/x
  3. Step 3: Cross multiply
    18,294.92x = 27,442.46 × 5,147.48
  4. Step 4: Simplify right side
    18,294.92x = 141,259,514.00
  5. Step 5: Solve for x
    x = 141,259,514.00/18,294.92
  6. Step 6: Final answer
    x = 7,721.24

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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.