Home / 11,620.10-17,429.99-2,855.09

Finding the Fourth Proportional to 11,620.10, 17,429.99 and 2,855.09

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Solution

The fourth proportional to 11,620.10, 17,429.99 and 2,855.09 is: 4,282.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.10 : 17,429.99 = 2,855.09 : x
  2. Step 2: Convert to fraction form
    11,620.10/17,429.99 = 2,855.09/x
  3. Step 3: Cross multiply
    11,620.10x = 17,429.99 × 2,855.09
  4. Step 4: Simplify right side
    11,620.10x = 49,764,153.71
  5. Step 5: Solve for x
    x = 49,764,153.71/11,620.10
  6. Step 6: Final answer
    x = 4,282.59

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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.