Home / 8,523.18-12,784.78-3,906.18

Finding the Fourth Proportional to 8,523.18, 12,784.78 and 3,906.18

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Solution

The fourth proportional to 8,523.18, 12,784.78 and 3,906.18 is: 5,859.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,523.18 : 12,784.78 = 3,906.18 : x
  2. Step 2: Convert to fraction form
    8,523.18/12,784.78 = 3,906.18/x
  3. Step 3: Cross multiply
    8,523.18x = 12,784.78 × 3,906.18
  4. Step 4: Simplify right side
    8,523.18x = 49,939,651.94
  5. Step 5: Solve for x
    x = 49,939,651.94/8,523.18
  6. Step 6: Final answer
    x = 5,859.27

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Similar ratio
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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.