Home / 12,418.11-18,616.68-5,392.83

Finding the Fourth Proportional to 12,418.11, 18,616.68 and 5,392.83

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Solution

The fourth proportional to 12,418.11, 18,616.68 and 5,392.83 is: 8,084.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.11 : 18,616.68 = 5,392.83 : x
  2. Step 2: Convert to fraction form
    12,418.11/18,616.68 = 5,392.83/x
  3. Step 3: Cross multiply
    12,418.11x = 18,616.68 × 5,392.83
  4. Step 4: Simplify right side
    12,418.11x = 100,396,590.40
  5. Step 5: Solve for x
    x = 100,396,590.40/12,418.11
  6. Step 6: Final answer
    x = 8,084.69

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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.