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Finding the Fourth Proportional to 8,544.50, 12,818.92 and 2,388.50

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Solution

The fourth proportional to 8,544.50, 12,818.92 and 2,388.50 is: 3,583.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,544.50 : 12,818.92 = 2,388.50 : x
  2. Step 2: Convert to fraction form
    8,544.50/12,818.92 = 2,388.50/x
  3. Step 3: Cross multiply
    8,544.50x = 12,818.92 × 2,388.50
  4. Step 4: Simplify right side
    8,544.50x = 30,617,990.42
  5. Step 5: Solve for x
    x = 30,617,990.42/8,544.50
  6. Step 6: Final answer
    x = 3,583.36

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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.