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Finding the Fourth Proportional to 6,612.62, 9,918.94 and 1,995.62

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Solution

The fourth proportional to 6,612.62, 9,918.94 and 1,995.62 is: 2,993.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.62 : 9,918.94 = 1,995.62 : x
  2. Step 2: Convert to fraction form
    6,612.62/9,918.94 = 1,995.62/x
  3. Step 3: Cross multiply
    6,612.62x = 9,918.94 × 1,995.62
  4. Step 4: Simplify right side
    6,612.62x = 19,794,435.04
  5. Step 5: Solve for x
    x = 19,794,435.04/6,612.62
  6. Step 6: Final answer
    x = 2,993.43

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Double scale
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Similar ratio
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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.