Home / 8,515.13-12,770.19-3,584.66

Finding the Fourth Proportional to 8,515.13, 12,770.19 and 3,584.66

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Solution

The fourth proportional to 8,515.13, 12,770.19 and 3,584.66 is: 5,375.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.13 : 12,770.19 = 3,584.66 : x
  2. Step 2: Convert to fraction form
    8,515.13/12,770.19 = 3,584.66/x
  3. Step 3: Cross multiply
    8,515.13x = 12,770.19 × 3,584.66
  4. Step 4: Simplify right side
    8,515.13x = 45,776,725.43
  5. Step 5: Solve for x
    x = 45,776,725.43/8,515.13
  6. Step 6: Final answer
    x = 5,375.93

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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.