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Finding the Fourth Proportional to 8,169.53, 12,252.16 and 2,620.01

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Solution

The fourth proportional to 8,169.53, 12,252.16 and 2,620.01 is: 3,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.53 : 12,252.16 = 2,620.01 : x
  2. Step 2: Convert to fraction form
    8,169.53/12,252.16 = 2,620.01/x
  3. Step 3: Cross multiply
    8,169.53x = 12,252.16 × 2,620.01
  4. Step 4: Simplify right side
    8,169.53x = 32,100,815.63
  5. Step 5: Solve for x
    x = 32,100,815.63/8,169.53
  6. Step 6: Final answer
    x = 3,929.34

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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.