Home / 7,965.36-11,949.55-2,628.85

Finding the Fourth Proportional to 7,965.36, 11,949.55 and 2,628.85

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Solution

The fourth proportional to 7,965.36, 11,949.55 and 2,628.85 is: 3,943.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.36 : 11,949.55 = 2,628.85 : x
  2. Step 2: Convert to fraction form
    7,965.36/11,949.55 = 2,628.85/x
  3. Step 3: Cross multiply
    7,965.36x = 11,949.55 × 2,628.85
  4. Step 4: Simplify right side
    7,965.36x = 31,413,574.52
  5. Step 5: Solve for x
    x = 31,413,574.52/7,965.36
  6. Step 6: Final answer
    x = 3,943.77

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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.