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Finding the Fourth Proportional to 6,621.62, 9,932.13 and 4,019.09

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Solution

The fourth proportional to 6,621.62, 9,932.13 and 4,019.09 is: 6,028.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.62 : 9,932.13 = 4,019.09 : x
  2. Step 2: Convert to fraction form
    6,621.62/9,932.13 = 4,019.09/x
  3. Step 3: Cross multiply
    6,621.62x = 9,932.13 × 4,019.09
  4. Step 4: Simplify right side
    6,621.62x = 39,918,074.70
  5. Step 5: Solve for x
    x = 39,918,074.70/6,621.62
  6. Step 6: Final answer
    x = 6,028.45

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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.