Home / 13,175.49-19,764.26-3,815.65

Finding the Fourth Proportional to 13,175.49, 19,764.26 and 3,815.65

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Solution

The fourth proportional to 13,175.49, 19,764.26 and 3,815.65 is: 5,723.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.49 : 19,764.26 = 3,815.65 : x
  2. Step 2: Convert to fraction form
    13,175.49/19,764.26 = 3,815.65/x
  3. Step 3: Cross multiply
    13,175.49x = 19,764.26 × 3,815.65
  4. Step 4: Simplify right side
    13,175.49x = 75,413,518.60
  5. Step 5: Solve for x
    x = 75,413,518.60/13,175.49
  6. Step 6: Final answer
    x = 5,723.77

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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.