Home / 18,143.46-27,218.68-6,296.78

Finding the Fourth Proportional to 18,143.46, 27,218.68 and 6,296.78

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Solution

The fourth proportional to 18,143.46, 27,218.68 and 6,296.78 is: 9,446.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.46 : 27,218.68 = 6,296.78 : x
  2. Step 2: Convert to fraction form
    18,143.46/27,218.68 = 6,296.78/x
  3. Step 3: Cross multiply
    18,143.46x = 27,218.68 × 6,296.78
  4. Step 4: Simplify right side
    18,143.46x = 171,390,092.16
  5. Step 5: Solve for x
    x = 171,390,092.16/18,143.46
  6. Step 6: Final answer
    x = 9,446.38

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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.