Home / 8,107.17-11,187.79-4,571.52

Finding the Fourth Proportional to 8,107.17, 11,187.79 and 4,571.52

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Solution

The fourth proportional to 8,107.17, 11,187.79 and 4,571.52 is: 6,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107.17 : 11,187.79 = 4,571.52 : x
  2. Step 2: Convert to fraction form
    8,107.17/11,187.79 = 4,571.52/x
  3. Step 3: Cross multiply
    8,107.17x = 11,187.79 × 4,571.52
  4. Step 4: Simplify right side
    8,107.17x = 51,145,205.74
  5. Step 5: Solve for x
    x = 51,145,205.74/8,107.17
  6. Step 6: Final answer
    x = 6,308.64

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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.