Home / 18,293.37-27,431.40-8,429.73

Finding the Fourth Proportional to 18,293.37, 27,431.40 and 8,429.73

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Solution

The fourth proportional to 18,293.37, 27,431.40 and 8,429.73 is: 12,640.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.37 : 27,431.40 = 8,429.73 : x
  2. Step 2: Convert to fraction form
    18,293.37/27,431.40 = 8,429.73/x
  3. Step 3: Cross multiply
    18,293.37x = 27,431.40 × 8,429.73
  4. Step 4: Simplify right side
    18,293.37x = 231,239,295.52
  5. Step 5: Solve for x
    x = 231,239,295.52/18,293.37
  6. Step 6: Final answer
    x = 12,640.61

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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.