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Finding the Fourth Proportional to 8,958.06, 12,353.65 and 6,829.85

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Solution

The fourth proportional to 8,958.06, 12,353.65 and 6,829.85 is: 9,418.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.06 : 12,353.65 = 6,829.85 : x
  2. Step 2: Convert to fraction form
    8,958.06/12,353.65 = 6,829.85/x
  3. Step 3: Cross multiply
    8,958.06x = 12,353.65 × 6,829.85
  4. Step 4: Simplify right side
    8,958.06x = 84,373,590.26
  5. Step 5: Solve for x
    x = 84,373,590.26/8,958.06
  6. Step 6: Final answer
    x = 9,418.73

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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.