Home / 8,072.24-11,136.84-5,279.36

Finding the Fourth Proportional to 8,072.24, 11,136.84 and 5,279.36

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Solution

The fourth proportional to 8,072.24, 11,136.84 and 5,279.36 is: 7,283.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.24 : 11,136.84 = 5,279.36 : x
  2. Step 2: Convert to fraction form
    8,072.24/11,136.84 = 5,279.36/x
  3. Step 3: Cross multiply
    8,072.24x = 11,136.84 × 5,279.36
  4. Step 4: Simplify right side
    8,072.24x = 58,795,387.62
  5. Step 5: Solve for x
    x = 58,795,387.62/8,072.24
  6. Step 6: Final answer
    x = 7,283.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.