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Finding the Fourth Proportional to 8,559.74, 12,841.11 and 2,636.57

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Solution

The fourth proportional to 8,559.74, 12,841.11 and 2,636.57 is: 3,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.74 : 12,841.11 = 2,636.57 : x
  2. Step 2: Convert to fraction form
    8,559.74/12,841.11 = 2,636.57/x
  3. Step 3: Cross multiply
    8,559.74x = 12,841.11 × 2,636.57
  4. Step 4: Simplify right side
    8,559.74x = 33,856,485.39
  5. Step 5: Solve for x
    x = 33,856,485.39/8,559.74
  6. Step 6: Final answer
    x = 3,955.32

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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.