Home / 8,135.13-12,201.61-2,292.20

Finding the Fourth Proportional to 8,135.13, 12,201.61 and 2,292.20

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Solution

The fourth proportional to 8,135.13, 12,201.61 and 2,292.20 is: 3,437.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.13 : 12,201.61 = 2,292.20 : x
  2. Step 2: Convert to fraction form
    8,135.13/12,201.61 = 2,292.20/x
  3. Step 3: Cross multiply
    8,135.13x = 12,201.61 × 2,292.20
  4. Step 4: Simplify right side
    8,135.13x = 27,968,530.44
  5. Step 5: Solve for x
    x = 27,968,530.44/8,135.13
  6. Step 6: Final answer
    x = 3,437.99

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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.