Home / 8,109.40-11,175.68-5,867.48

Finding the Fourth Proportional to 8,109.40, 11,175.68 and 5,867.48

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Solution

The fourth proportional to 8,109.40, 11,175.68 and 5,867.48 is: 8,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.40 : 11,175.68 = 5,867.48 : x
  2. Step 2: Convert to fraction form
    8,109.40/11,175.68 = 5,867.48/x
  3. Step 3: Cross multiply
    8,109.40x = 11,175.68 × 5,867.48
  4. Step 4: Simplify right side
    8,109.40x = 65,573,078.89
  5. Step 5: Solve for x
    x = 65,573,078.89/8,109.40
  6. Step 6: Final answer
    x = 8,086.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.