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Finding the Fourth Proportional to 8,351.67, 12,540.06 and 7,950.42

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Solution

The fourth proportional to 8,351.67, 12,540.06 and 7,950.42 is: 11,937.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.67 : 12,540.06 = 7,950.42 : x
  2. Step 2: Convert to fraction form
    8,351.67/12,540.06 = 7,950.42/x
  3. Step 3: Cross multiply
    8,351.67x = 12,540.06 × 7,950.42
  4. Step 4: Simplify right side
    8,351.67x = 99,698,743.83
  5. Step 5: Solve for x
    x = 99,698,743.83/8,351.67
  6. Step 6: Final answer
    x = 11,937.58

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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.