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Finding the Fourth Proportional to 8,850.72, 13,265.04 and 3,917.28

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Solution

The fourth proportional to 8,850.72, 13,265.04 and 3,917.28 is: 5,871.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,850.72 : 13,265.04 = 3,917.28 : x
  2. Step 2: Convert to fraction form
    8,850.72/13,265.04 = 3,917.28/x
  3. Step 3: Cross multiply
    8,850.72x = 13,265.04 × 3,917.28
  4. Step 4: Simplify right side
    8,850.72x = 51,962,875.89
  5. Step 5: Solve for x
    x = 51,962,875.89/8,850.72
  6. Step 6: Final answer
    x = 5,871.03

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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.