Home / 8,109.13-12,163.47-2,265.58

Finding the Fourth Proportional to 8,109.13, 12,163.47 and 2,265.58

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Solution

The fourth proportional to 8,109.13, 12,163.47 and 2,265.58 is: 3,398.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.13 : 12,163.47 = 2,265.58 : x
  2. Step 2: Convert to fraction form
    8,109.13/12,163.47 = 2,265.58/x
  3. Step 3: Cross multiply
    8,109.13x = 12,163.47 × 2,265.58
  4. Step 4: Simplify right side
    8,109.13x = 27,557,314.36
  5. Step 5: Solve for x
    x = 27,557,314.36/8,109.13
  6. Step 6: Final answer
    x = 3,398.31

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1.5x scale

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.