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Finding the Fourth Proportional to 8,891.04, 13,310.64 and 7,141.44

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Solution

The fourth proportional to 8,891.04, 13,310.64 and 7,141.44 is: 10,691.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.04 : 13,310.64 = 7,141.44 : x
  2. Step 2: Convert to fraction form
    8,891.04/13,310.64 = 7,141.44/x
  3. Step 3: Cross multiply
    8,891.04x = 13,310.64 × 7,141.44
  4. Step 4: Simplify right side
    8,891.04x = 95,057,136.92
  5. Step 5: Solve for x
    x = 95,057,136.92/8,891.04
  6. Step 6: Final answer
    x = 10,691.34

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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.