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Finding the Fourth Proportional to 8,573.22, 11,891.12 and 8,223.30

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Solution

The fourth proportional to 8,573.22, 11,891.12 and 8,223.30 is: 11,405.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,573.22 : 11,891.12 = 8,223.30 : x
  2. Step 2: Convert to fraction form
    8,573.22/11,891.12 = 8,223.30/x
  3. Step 3: Cross multiply
    8,573.22x = 11,891.12 × 8,223.30
  4. Step 4: Simplify right side
    8,573.22x = 97,784,205.98
  5. Step 5: Solve for x
    x = 97,784,205.98/8,573.22
  6. Step 6: Final answer
    x = 11,405.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.