Home / 9,078.62-13,618.80-3,532.40

Finding the Fourth Proportional to 9,078.62, 13,618.80 and 3,532.40

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Solution

The fourth proportional to 9,078.62, 13,618.80 and 3,532.40 is: 5,298.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.62 : 13,618.80 = 3,532.40 : x
  2. Step 2: Convert to fraction form
    9,078.62/13,618.80 = 3,532.40/x
  3. Step 3: Cross multiply
    9,078.62x = 13,618.80 × 3,532.40
  4. Step 4: Simplify right side
    9,078.62x = 48,107,049.12
  5. Step 5: Solve for x
    x = 48,107,049.12/9,078.62
  6. Step 6: Final answer
    x = 5,298.94

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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.