Home / 8,979.62-13,470.12-2,740.18

Finding the Fourth Proportional to 8,979.62, 13,470.12 and 2,740.18

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Solution

The fourth proportional to 8,979.62, 13,470.12 and 2,740.18 is: 4,110.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.62 : 13,470.12 = 2,740.18 : x
  2. Step 2: Convert to fraction form
    8,979.62/13,470.12 = 2,740.18/x
  3. Step 3: Cross multiply
    8,979.62x = 13,470.12 × 2,740.18
  4. Step 4: Simplify right side
    8,979.62x = 36,910,553.42
  5. Step 5: Solve for x
    x = 36,910,553.42/8,979.62
  6. Step 6: Final answer
    x = 4,110.48

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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.