Home / 8,719.25-13,081.57-3,020.69

Finding the Fourth Proportional to 8,719.25, 13,081.57 and 3,020.69

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Solution

The fourth proportional to 8,719.25, 13,081.57 and 3,020.69 is: 4,531.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.25 : 13,081.57 = 3,020.69 : x
  2. Step 2: Convert to fraction form
    8,719.25/13,081.57 = 3,020.69/x
  3. Step 3: Cross multiply
    8,719.25x = 13,081.57 × 3,020.69
  4. Step 4: Simplify right side
    8,719.25x = 39,515,392.84
  5. Step 5: Solve for x
    x = 39,515,392.84/8,719.25
  6. Step 6: Final answer
    x = 4,531.97

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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.