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Finding the Fourth Proportional to 9,078.44, 13,599.44 and 6,618.47

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Solution

The fourth proportional to 9,078.44, 13,599.44 and 6,618.47 is: 9,914.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.44 : 13,599.44 = 6,618.47 : x
  2. Step 2: Convert to fraction form
    9,078.44/13,599.44 = 6,618.47/x
  3. Step 3: Cross multiply
    9,078.44x = 13,599.44 × 6,618.47
  4. Step 4: Simplify right side
    9,078.44x = 90,007,452.56
  5. Step 5: Solve for x
    x = 90,007,452.56/9,078.44
  6. Step 6: Final answer
    x = 9,914.42

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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.