Home / 8,112.20-11,197.23-4,755.74

Finding the Fourth Proportional to 8,112.20, 11,197.23 and 4,755.74

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Solution

The fourth proportional to 8,112.20, 11,197.23 and 4,755.74 is: 6,564.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.20 : 11,197.23 = 4,755.74 : x
  2. Step 2: Convert to fraction form
    8,112.20/11,197.23 = 4,755.74/x
  3. Step 3: Cross multiply
    8,112.20x = 11,197.23 × 4,755.74
  4. Step 4: Simplify right side
    8,112.20x = 53,251,114.60
  5. Step 5: Solve for x
    x = 53,251,114.60/8,112.20
  6. Step 6: Final answer
    x = 6,564.32

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Half scale
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Double scale
Find fourth proportional to 8,113.20, 11,198.61 and 4,756.74
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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.