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Finding the Fourth Proportional to 8,751.41, 13,127.19 and 2,829.20

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Solution

The fourth proportional to 8,751.41, 13,127.19 and 2,829.20 is: 4,243.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.41 : 13,127.19 = 2,829.20 : x
  2. Step 2: Convert to fraction form
    8,751.41/13,127.19 = 2,829.20/x
  3. Step 3: Cross multiply
    8,751.41x = 13,127.19 × 2,829.20
  4. Step 4: Simplify right side
    8,751.41x = 37,139,369.70
  5. Step 5: Solve for x
    x = 37,139,369.70/8,751.41
  6. Step 6: Final answer
    x = 4,243.82

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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.