Home / 8,047.26-12,072.29-2,782.80

Finding the Fourth Proportional to 8,047.26, 12,072.29 and 2,782.80

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Solution

The fourth proportional to 8,047.26, 12,072.29 and 2,782.80 is: 4,174.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,047.26 : 12,072.29 = 2,782.80 : x
  2. Step 2: Convert to fraction form
    8,047.26/12,072.29 = 2,782.80/x
  3. Step 3: Cross multiply
    8,047.26x = 12,072.29 × 2,782.80
  4. Step 4: Simplify right side
    8,047.26x = 33,594,754.70
  5. Step 5: Solve for x
    x = 33,594,754.70/8,047.26
  6. Step 6: Final answer
    x = 4,174.68

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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.