Home / 8,979.73-12,391.24-5,201.69

Finding the Fourth Proportional to 8,979.73, 12,391.24 and 5,201.69

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Solution

The fourth proportional to 8,979.73, 12,391.24 and 5,201.69 is: 7,177.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.73 : 12,391.24 = 5,201.69 : x
  2. Step 2: Convert to fraction form
    8,979.73/12,391.24 = 5,201.69/x
  3. Step 3: Cross multiply
    8,979.73x = 12,391.24 × 5,201.69
  4. Step 4: Simplify right side
    8,979.73x = 64,455,389.20
  5. Step 5: Solve for x
    x = 64,455,389.20/8,979.73
  6. Step 6: Final answer
    x = 7,177.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.