Home / 8,112.36-12,173.96-2,847.37

Finding the Fourth Proportional to 8,112.36, 12,173.96 and 2,847.37

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Solution

The fourth proportional to 8,112.36, 12,173.96 and 2,847.37 is: 4,272.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.36 : 12,173.96 = 2,847.37 : x
  2. Step 2: Convert to fraction form
    8,112.36/12,173.96 = 2,847.37/x
  3. Step 3: Cross multiply
    8,112.36x = 12,173.96 × 2,847.37
  4. Step 4: Simplify right side
    8,112.36x = 34,663,768.49
  5. Step 5: Solve for x
    x = 34,663,768.49/8,112.36
  6. Step 6: Final answer
    x = 4,272.96

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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.