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Finding the Fourth Proportional to 6,662.57, 9,198.09 and 4,427.51

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Solution

The fourth proportional to 6,662.57, 9,198.09 and 4,427.51 is: 6,112.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662.57 : 9,198.09 = 4,427.51 : x
  2. Step 2: Convert to fraction form
    6,662.57/9,198.09 = 4,427.51/x
  3. Step 3: Cross multiply
    6,662.57x = 9,198.09 × 4,427.51
  4. Step 4: Simplify right side
    6,662.57x = 40,724,589.47
  5. Step 5: Solve for x
    x = 40,724,589.47/6,662.57
  6. Step 6: Final answer
    x = 6,112.45

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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.