Home / 8,456.30-11,672.40-5,939.02

Finding the Fourth Proportional to 8,456.30, 11,672.40 and 5,939.02

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Solution

The fourth proportional to 8,456.30, 11,672.40 and 5,939.02 is: 8,197.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.30 : 11,672.40 = 5,939.02 : x
  2. Step 2: Convert to fraction form
    8,456.30/11,672.40 = 5,939.02/x
  3. Step 3: Cross multiply
    8,456.30x = 11,672.40 × 5,939.02
  4. Step 4: Simplify right side
    8,456.30x = 69,322,617.05
  5. Step 5: Solve for x
    x = 69,322,617.05/8,456.30
  6. Step 6: Final answer
    x = 8,197.75

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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.