Home / 8,579.16-11,839.68-5,221.44

Finding the Fourth Proportional to 8,579.16, 11,839.68 and 5,221.44

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Solution

The fourth proportional to 8,579.16, 11,839.68 and 5,221.44 is: 7,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.16 : 11,839.68 = 5,221.44 : x
  2. Step 2: Convert to fraction form
    8,579.16/11,839.68 = 5,221.44/x
  3. Step 3: Cross multiply
    8,579.16x = 11,839.68 × 5,221.44
  4. Step 4: Simplify right side
    8,579.16x = 61,820,178.74
  5. Step 5: Solve for x
    x = 61,820,178.74/8,579.16
  6. Step 6: Final answer
    x = 7,205.85

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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.