Home / 8,072.75-12,113.82-3,392.40

Finding the Fourth Proportional to 8,072.75, 12,113.82 and 3,392.40

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Solution

The fourth proportional to 8,072.75, 12,113.82 and 3,392.40 is: 5,090.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.75 : 12,113.82 = 3,392.40 : x
  2. Step 2: Convert to fraction form
    8,072.75/12,113.82 = 3,392.40/x
  3. Step 3: Cross multiply
    8,072.75x = 12,113.82 × 3,392.40
  4. Step 4: Simplify right side
    8,072.75x = 41,094,922.97
  5. Step 5: Solve for x
    x = 41,094,922.97/8,072.75
  6. Step 6: Final answer
    x = 5,090.58

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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.