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Finding the Fourth Proportional to 8,622.24, 11,898.80 and 8,324.22

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Solution

The fourth proportional to 8,622.24, 11,898.80 and 8,324.22 is: 11,487.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.24 : 11,898.80 = 8,324.22 : x
  2. Step 2: Convert to fraction form
    8,622.24/11,898.80 = 8,324.22/x
  3. Step 3: Cross multiply
    8,622.24x = 11,898.80 × 8,324.22
  4. Step 4: Simplify right side
    8,622.24x = 99,048,228.94
  5. Step 5: Solve for x
    x = 99,048,228.94/8,622.24
  6. Step 6: Final answer
    x = 11,487.53

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Similar ratio
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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.