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Finding the Fourth Proportional to 8,754.72, 13,106.08 and 5,281.44

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Solution

The fourth proportional to 8,754.72, 13,106.08 and 5,281.44 is: 7,906.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.72 : 13,106.08 = 5,281.44 : x
  2. Step 2: Convert to fraction form
    8,754.72/13,106.08 = 5,281.44/x
  3. Step 3: Cross multiply
    8,754.72x = 13,106.08 × 5,281.44
  4. Step 4: Simplify right side
    8,754.72x = 69,218,975.16
  5. Step 5: Solve for x
    x = 69,218,975.16/8,754.72
  6. Step 6: Final answer
    x = 7,906.48

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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.