Home / 8,072.65-12,099.66-3,690.55

Finding the Fourth Proportional to 8,072.65, 12,099.66 and 3,690.55

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Solution

The fourth proportional to 8,072.65, 12,099.66 and 3,690.55 is: 5,531.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.65 : 12,099.66 = 3,690.55 : x
  2. Step 2: Convert to fraction form
    8,072.65/12,099.66 = 3,690.55/x
  3. Step 3: Cross multiply
    8,072.65x = 12,099.66 × 3,690.55
  4. Step 4: Simplify right side
    8,072.65x = 44,654,400.21
  5. Step 5: Solve for x
    x = 44,654,400.21/8,072.65
  6. Step 6: Final answer
    x = 5,531.57

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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.