Home / 7,786.87-11,673.36-2,855.36

Finding the Fourth Proportional to 7,786.87, 11,673.36 and 2,855.36

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Solution

The fourth proportional to 7,786.87, 11,673.36 and 2,855.36 is: 4,280.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.87 : 11,673.36 = 2,855.36 : x
  2. Step 2: Convert to fraction form
    7,786.87/11,673.36 = 2,855.36/x
  3. Step 3: Cross multiply
    7,786.87x = 11,673.36 × 2,855.36
  4. Step 4: Simplify right side
    7,786.87x = 33,331,572.57
  5. Step 5: Solve for x
    x = 33,331,572.57/7,786.87
  6. Step 6: Final answer
    x = 4,280.49

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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.