Home / 18,330.38-27,497.63-5,183.78

Finding the Fourth Proportional to 18,330.38, 27,497.63 and 5,183.78

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Solution

The fourth proportional to 18,330.38, 27,497.63 and 5,183.78 is: 7,776.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,330.38 : 27,497.63 = 5,183.78 : x
  2. Step 2: Convert to fraction form
    18,330.38/27,497.63 = 5,183.78/x
  3. Step 3: Cross multiply
    18,330.38x = 27,497.63 × 5,183.78
  4. Step 4: Simplify right side
    18,330.38x = 142,541,707.27
  5. Step 5: Solve for x
    x = 142,541,707.27/18,330.38
  6. Step 6: Final answer
    x = 7,776.25

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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.