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Finding the Fourth Proportional to 8,530.72, 12,796.08 and 3,338.08

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Solution

The fourth proportional to 8,530.72, 12,796.08 and 3,338.08 is: 5,007.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.72 : 12,796.08 = 3,338.08 : x
  2. Step 2: Convert to fraction form
    8,530.72/12,796.08 = 3,338.08/x
  3. Step 3: Cross multiply
    8,530.72x = 12,796.08 × 3,338.08
  4. Step 4: Simplify right side
    8,530.72x = 42,714,338.73
  5. Step 5: Solve for x
    x = 42,714,338.73/8,530.72
  6. Step 6: Final answer
    x = 5,007.12

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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.