Home / 9,979.92-13,773.22-5,731.54

Finding the Fourth Proportional to 9,979.92, 13,773.22 and 5,731.54

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Solution

The fourth proportional to 9,979.92, 13,773.22 and 5,731.54 is: 7,910.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.92 : 13,773.22 = 5,731.54 : x
  2. Step 2: Convert to fraction form
    9,979.92/13,773.22 = 5,731.54/x
  3. Step 3: Cross multiply
    9,979.92x = 13,773.22 × 5,731.54
  4. Step 4: Simplify right side
    9,979.92x = 78,941,761.36
  5. Step 5: Solve for x
    x = 78,941,761.36/9,979.92
  6. Step 6: Final answer
    x = 7,910.06

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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.