Home / 8,511.89-12,770.56-3,516.61

Finding the Fourth Proportional to 8,511.89, 12,770.56 and 3,516.61

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Solution

The fourth proportional to 8,511.89, 12,770.56 and 3,516.61 is: 5,276.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.89 : 12,770.56 = 3,516.61 : x
  2. Step 2: Convert to fraction form
    8,511.89/12,770.56 = 3,516.61/x
  3. Step 3: Cross multiply
    8,511.89x = 12,770.56 × 3,516.61
  4. Step 4: Simplify right side
    8,511.89x = 44,909,079.00
  5. Step 5: Solve for x
    x = 44,909,079.00/8,511.89
  6. Step 6: Final answer
    x = 5,276.04

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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.