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Finding the Fourth Proportional to 9,078.80, 13,618.99 and 2,504.99

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Solution

The fourth proportional to 9,078.80, 13,618.99 and 2,504.99 is: 3,757.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.80 : 13,618.99 = 2,504.99 : x
  2. Step 2: Convert to fraction form
    9,078.80/13,618.99 = 2,504.99/x
  3. Step 3: Cross multiply
    9,078.80x = 13,618.99 × 2,504.99
  4. Step 4: Simplify right side
    9,078.80x = 34,115,353.14
  5. Step 5: Solve for x
    x = 34,115,353.14/9,078.80
  6. Step 6: Final answer
    x = 3,757.69

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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.