Home / 8,072.33-12,112.94-3,142.19

Finding the Fourth Proportional to 8,072.33, 12,112.94 and 3,142.19

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Solution

The fourth proportional to 8,072.33, 12,112.94 and 3,142.19 is: 4,715.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.33 : 12,112.94 = 3,142.19 : x
  2. Step 2: Convert to fraction form
    8,072.33/12,112.94 = 3,142.19/x
  3. Step 3: Cross multiply
    8,072.33x = 12,112.94 × 3,142.19
  4. Step 4: Simplify right side
    8,072.33x = 38,061,197.08
  5. Step 5: Solve for x
    x = 38,061,197.08/8,072.33
  6. Step 6: Final answer
    x = 4,715.02

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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.