Home / 8,099.43-12,149.07-3,172.51

Finding the Fourth Proportional to 8,099.43, 12,149.07 and 3,172.51

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Solution

The fourth proportional to 8,099.43, 12,149.07 and 3,172.51 is: 4,758.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.43 : 12,149.07 = 3,172.51 : x
  2. Step 2: Convert to fraction form
    8,099.43/12,149.07 = 3,172.51/x
  3. Step 3: Cross multiply
    8,099.43x = 12,149.07 × 3,172.51
  4. Step 4: Simplify right side
    8,099.43x = 38,543,046.07
  5. Step 5: Solve for x
    x = 38,543,046.07/8,099.43
  6. Step 6: Final answer
    x = 4,758.74

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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.