Home / 8,128.30-11,216.70-4,591.84

Finding the Fourth Proportional to 8,128.30, 11,216.70 and 4,591.84

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Solution

The fourth proportional to 8,128.30, 11,216.70 and 4,591.84 is: 6,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.30 : 11,216.70 = 4,591.84 : x
  2. Step 2: Convert to fraction form
    8,128.30/11,216.70 = 4,591.84/x
  3. Step 3: Cross multiply
    8,128.30x = 11,216.70 × 4,591.84
  4. Step 4: Simplify right side
    8,128.30x = 51,505,291.73
  5. Step 5: Solve for x
    x = 51,505,291.73/8,128.30
  6. Step 6: Final answer
    x = 6,336.54

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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.