Home / 7,815.20-11,722.93-2,550.26

Finding the Fourth Proportional to 7,815.20, 11,722.93 and 2,550.26

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Solution

The fourth proportional to 7,815.20, 11,722.93 and 2,550.26 is: 3,825.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.20 : 11,722.93 = 2,550.26 : x
  2. Step 2: Convert to fraction form
    7,815.20/11,722.93 = 2,550.26/x
  3. Step 3: Cross multiply
    7,815.20x = 11,722.93 × 2,550.26
  4. Step 4: Simplify right side
    7,815.20x = 29,896,542.39
  5. Step 5: Solve for x
    x = 29,896,542.39/7,815.20
  6. Step 6: Final answer
    x = 3,825.44

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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.