Home / 7,815.57-11,723.49-2,550.65

Finding the Fourth Proportional to 7,815.57, 11,723.49 and 2,550.65

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Solution

The fourth proportional to 7,815.57, 11,723.49 and 2,550.65 is: 3,826.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.57 : 11,723.49 = 2,550.65 : x
  2. Step 2: Convert to fraction form
    7,815.57/11,723.49 = 2,550.65/x
  3. Step 3: Cross multiply
    7,815.57x = 11,723.49 × 2,550.65
  4. Step 4: Simplify right side
    7,815.57x = 29,902,461.15
  5. Step 5: Solve for x
    x = 29,902,461.15/7,815.57
  6. Step 6: Final answer
    x = 3,826.01

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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.