Home / 8,167.15-12,252.78-2,621.06

Finding the Fourth Proportional to 8,167.15, 12,252.78 and 2,621.06

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Solution

The fourth proportional to 8,167.15, 12,252.78 and 2,621.06 is: 3,932.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.15 : 12,252.78 = 2,621.06 : x
  2. Step 2: Convert to fraction form
    8,167.15/12,252.78 = 2,621.06/x
  3. Step 3: Cross multiply
    8,167.15x = 12,252.78 × 2,621.06
  4. Step 4: Simplify right side
    8,167.15x = 32,115,259.92
  5. Step 5: Solve for x
    x = 32,115,259.92/8,167.15
  6. Step 6: Final answer
    x = 3,932.25

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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.