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Finding the Fourth Proportional to 6,111.73, 9,179.87 and 5,939.47

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Solution

The fourth proportional to 6,111.73, 9,179.87 and 5,939.47 is: 8,921.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,111.73 : 9,179.87 = 5,939.47 : x
  2. Step 2: Convert to fraction form
    6,111.73/9,179.87 = 5,939.47/x
  3. Step 3: Cross multiply
    6,111.73x = 9,179.87 × 5,939.47
  4. Step 4: Simplify right side
    6,111.73x = 54,523,562.47
  5. Step 5: Solve for x
    x = 54,523,562.47/6,111.73
  6. Step 6: Final answer
    x = 8,921.13

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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.