Home / 11,907.78-17,861.67-4,112.34

Finding the Fourth Proportional to 11,907.78, 17,861.67 and 4,112.34

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Solution

The fourth proportional to 11,907.78, 17,861.67 and 4,112.34 is: 6,168.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.78 : 17,861.67 = 4,112.34 : x
  2. Step 2: Convert to fraction form
    11,907.78/17,861.67 = 4,112.34/x
  3. Step 3: Cross multiply
    11,907.78x = 17,861.67 × 4,112.34
  4. Step 4: Simplify right side
    11,907.78x = 73,453,260.01
  5. Step 5: Solve for x
    x = 73,453,260.01/11,907.78
  6. Step 6: Final answer
    x = 6,168.51

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Similar ratio
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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.