Home / 8,131.65-12,199.77-2,288.31

Finding the Fourth Proportional to 8,131.65, 12,199.77 and 2,288.31

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Solution

The fourth proportional to 8,131.65, 12,199.77 and 2,288.31 is: 3,433.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.65 : 12,199.77 = 2,288.31 : x
  2. Step 2: Convert to fraction form
    8,131.65/12,199.77 = 2,288.31/x
  3. Step 3: Cross multiply
    8,131.65x = 12,199.77 × 2,288.31
  4. Step 4: Simplify right side
    8,131.65x = 27,916,855.69
  5. Step 5: Solve for x
    x = 27,916,855.69/8,131.65
  6. Step 6: Final answer
    x = 3,433.11

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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.