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Finding the Fourth Proportional to 8,979.26, 13,536.18 and 8,377.22

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Solution

The fourth proportional to 8,979.26, 13,536.18 and 8,377.22 is: 12,628.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.26 : 13,536.18 = 8,377.22 : x
  2. Step 2: Convert to fraction form
    8,979.26/13,536.18 = 8,377.22/x
  3. Step 3: Cross multiply
    8,979.26x = 13,536.18 × 8,377.22
  4. Step 4: Simplify right side
    8,979.26x = 113,395,591.66
  5. Step 5: Solve for x
    x = 113,395,591.66/8,979.26
  6. Step 6: Final answer
    x = 12,628.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.