Home / 8,505.36-12,759.66-2,660.76

Finding the Fourth Proportional to 8,505.36, 12,759.66 and 2,660.76

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Solution

The fourth proportional to 8,505.36, 12,759.66 and 2,660.76 is: 3,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.36 : 12,759.66 = 2,660.76 : x
  2. Step 2: Convert to fraction form
    8,505.36/12,759.66 = 2,660.76/x
  3. Step 3: Cross multiply
    8,505.36x = 12,759.66 × 2,660.76
  4. Step 4: Simplify right side
    8,505.36x = 33,950,392.94
  5. Step 5: Solve for x
    x = 33,950,392.94/8,505.36
  6. Step 6: Final answer
    x = 3,991.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.