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Finding the Fourth Proportional to 6,653.95, 9,987.11 and 3,369.37

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Solution

The fourth proportional to 6,653.95, 9,987.11 and 3,369.37 is: 5,057.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.95 : 9,987.11 = 3,369.37 : x
  2. Step 2: Convert to fraction form
    6,653.95/9,987.11 = 3,369.37/x
  3. Step 3: Cross multiply
    6,653.95x = 9,987.11 × 3,369.37
  4. Step 4: Simplify right side
    6,653.95x = 33,650,202.04
  5. Step 5: Solve for x
    x = 33,650,202.04/6,653.95
  6. Step 6: Final answer
    x = 5,057.18

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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.