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Finding the Fourth Proportional to 8,829.82, 13,238.32 and 4,147.42

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Solution

The fourth proportional to 8,829.82, 13,238.32 and 4,147.42 is: 6,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,829.82 : 13,238.32 = 4,147.42 : x
  2. Step 2: Convert to fraction form
    8,829.82/13,238.32 = 4,147.42/x
  3. Step 3: Cross multiply
    8,829.82x = 13,238.32 × 4,147.42
  4. Step 4: Simplify right side
    8,829.82x = 54,904,873.13
  5. Step 5: Solve for x
    x = 54,904,873.13/8,829.82
  6. Step 6: Final answer
    x = 6,218.12

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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.