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Finding the Fourth Proportional to 8,229.72, 11,357.02 and 4,503.72

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Solution

The fourth proportional to 8,229.72, 11,357.02 and 4,503.72 is: 6,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229.72 : 11,357.02 = 4,503.72 : x
  2. Step 2: Convert to fraction form
    8,229.72/11,357.02 = 4,503.72/x
  3. Step 3: Cross multiply
    8,229.72x = 11,357.02 × 4,503.72
  4. Step 4: Simplify right side
    8,229.72x = 51,148,838.11
  5. Step 5: Solve for x
    x = 51,148,838.11/8,229.72
  6. Step 6: Final answer
    x = 6,215.14

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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.