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Finding the Fourth Proportional to 6,660.75, 10,012.73 and 6,179.79

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Solution

The fourth proportional to 6,660.75, 10,012.73 and 6,179.79 is: 9,289.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.75 : 10,012.73 = 6,179.79 : x
  2. Step 2: Convert to fraction form
    6,660.75/10,012.73 = 6,179.79/x
  3. Step 3: Cross multiply
    6,660.75x = 10,012.73 × 6,179.79
  4. Step 4: Simplify right side
    6,660.75x = 61,876,537.83
  5. Step 5: Solve for x
    x = 61,876,537.83/6,660.75
  6. Step 6: Final answer
    x = 9,289.73

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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.