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Finding the Fourth Proportional to 8,859.85, 13,282.23 and 3,926.80

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Solution

The fourth proportional to 8,859.85, 13,282.23 and 3,926.80 is: 5,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.85 : 13,282.23 = 3,926.80 : x
  2. Step 2: Convert to fraction form
    8,859.85/13,282.23 = 3,926.80/x
  3. Step 3: Cross multiply
    8,859.85x = 13,282.23 × 3,926.80
  4. Step 4: Simplify right side
    8,859.85x = 52,156,627.56
  5. Step 5: Solve for x
    x = 52,156,627.56/8,859.85
  6. Step 6: Final answer
    x = 5,886.85

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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.