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Finding the Fourth Proportional to 6,620.18, 9,927.06 and 3,847.65

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Solution

The fourth proportional to 6,620.18, 9,927.06 and 3,847.65 is: 5,769.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.18 : 9,927.06 = 3,847.65 : x
  2. Step 2: Convert to fraction form
    6,620.18/9,927.06 = 3,847.65/x
  3. Step 3: Cross multiply
    6,620.18x = 9,927.06 × 3,847.65
  4. Step 4: Simplify right side
    6,620.18x = 38,195,800.75
  5. Step 5: Solve for x
    x = 38,195,800.75/6,620.18
  6. Step 6: Final answer
    x = 5,769.61

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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.