Home / 8,112.83-11,185.56-6,770.37

Finding the Fourth Proportional to 8,112.83, 11,185.56 and 6,770.37

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Solution

The fourth proportional to 8,112.83, 11,185.56 and 6,770.37 is: 9,334.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.83 : 11,185.56 = 6,770.37 : x
  2. Step 2: Convert to fraction form
    8,112.83/11,185.56 = 6,770.37/x
  3. Step 3: Cross multiply
    8,112.83x = 11,185.56 × 6,770.37
  4. Step 4: Simplify right side
    8,112.83x = 75,730,379.86
  5. Step 5: Solve for x
    x = 75,730,379.86/8,112.83
  6. Step 6: Final answer
    x = 9,334.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.