Home / 18,576.62-27,864.39-5,429.30

Finding the Fourth Proportional to 18,576.62, 27,864.39 and 5,429.30

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Solution

The fourth proportional to 18,576.62, 27,864.39 and 5,429.30 is: 8,143.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576.62 : 27,864.39 = 5,429.30 : x
  2. Step 2: Convert to fraction form
    18,576.62/27,864.39 = 5,429.30/x
  3. Step 3: Cross multiply
    18,576.62x = 27,864.39 × 5,429.30
  4. Step 4: Simplify right side
    18,576.62x = 151,284,132.63
  5. Step 5: Solve for x
    x = 151,284,132.63/18,576.62
  6. Step 6: Final answer
    x = 8,143.79

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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.