Home / 8,102.93-12,149.53-3,166.69

Finding the Fourth Proportional to 8,102.93, 12,149.53 and 3,166.69

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Solution

The fourth proportional to 8,102.93, 12,149.53 and 3,166.69 is: 4,748.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.93 : 12,149.53 = 3,166.69 : x
  2. Step 2: Convert to fraction form
    8,102.93/12,149.53 = 3,166.69/x
  3. Step 3: Cross multiply
    8,102.93x = 12,149.53 × 3,166.69
  4. Step 4: Simplify right side
    8,102.93x = 38,473,764.78
  5. Step 5: Solve for x
    x = 38,473,764.78/8,102.93
  6. Step 6: Final answer
    x = 4,748.13

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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.