Home / 6,612-9,918.40-1,995.04

Finding the Fourth Proportional to 6,612, 9,918.40 and 1,995.04

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Solution

The fourth proportional to 6,612, 9,918.40 and 1,995.04 is: 2,992.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612 : 9,918.40 = 1,995.04 : x
  2. Step 2: Convert to fraction form
    6,612/9,918.40 = 1,995.04/x
  3. Step 3: Cross multiply
    6,612x = 9,918.40 × 1,995.04
  4. Step 4: Simplify right side
    6,612x = 19,787,604.74
  5. Step 5: Solve for x
    x = 19,787,604.74/6,612
  6. Step 6: Final answer
    x = 2,992.68

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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.