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Finding the Fourth Proportional to 8,903.50, 13,355.43 and 2,747.50

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Solution

The fourth proportional to 8,903.50, 13,355.43 and 2,747.50 is: 4,121.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.50 : 13,355.43 = 2,747.50 : x
  2. Step 2: Convert to fraction form
    8,903.50/13,355.43 = 2,747.50/x
  3. Step 3: Cross multiply
    8,903.50x = 13,355.43 × 2,747.50
  4. Step 4: Simplify right side
    8,903.50x = 36,694,043.93
  5. Step 5: Solve for x
    x = 36,694,043.93/8,903.50
  6. Step 6: Final answer
    x = 4,121.31

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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.