Home / 8,918.24-13,379.18-3,074.09

Finding the Fourth Proportional to 8,918.24, 13,379.18 and 3,074.09

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Solution

The fourth proportional to 8,918.24, 13,379.18 and 3,074.09 is: 4,611.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.24 : 13,379.18 = 3,074.09 : x
  2. Step 2: Convert to fraction form
    8,918.24/13,379.18 = 3,074.09/x
  3. Step 3: Cross multiply
    8,918.24x = 13,379.18 × 3,074.09
  4. Step 4: Simplify right side
    8,918.24x = 41,128,721.18
  5. Step 5: Solve for x
    x = 41,128,721.18/8,918.24
  6. Step 6: Final answer
    x = 4,611.76

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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.