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Finding the Fourth Proportional to 8,100.41, 12,151.22 and 3,943.89

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Solution

The fourth proportional to 8,100.41, 12,151.22 and 3,943.89 is: 5,916.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.41 : 12,151.22 = 3,943.89 : x
  2. Step 2: Convert to fraction form
    8,100.41/12,151.22 = 3,943.89/x
  3. Step 3: Cross multiply
    8,100.41x = 12,151.22 × 3,943.89
  4. Step 4: Simplify right side
    8,100.41x = 47,923,055.33
  5. Step 5: Solve for x
    x = 47,923,055.33/8,100.41
  6. Step 6: Final answer
    x = 5,916.13

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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.