Home / 8,142.55-11,236.61-4,785.75

Finding the Fourth Proportional to 8,142.55, 11,236.61 and 4,785.75

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Solution

The fourth proportional to 8,142.55, 11,236.61 and 4,785.75 is: 6,604.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.55 : 11,236.61 = 4,785.75 : x
  2. Step 2: Convert to fraction form
    8,142.55/11,236.61 = 4,785.75/x
  3. Step 3: Cross multiply
    8,142.55x = 11,236.61 × 4,785.75
  4. Step 4: Simplify right side
    8,142.55x = 53,775,618.27
  5. Step 5: Solve for x
    x = 53,775,618.27/8,142.55
  6. Step 6: Final answer
    x = 6,604.27

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Half scale
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Double scale
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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.