Home / 8,579.91-11,836.80-5,220.03

Finding the Fourth Proportional to 8,579.91, 11,836.80 and 5,220.03

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Solution

The fourth proportional to 8,579.91, 11,836.80 and 5,220.03 is: 7,201.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.91 : 11,836.80 = 5,220.03 : x
  2. Step 2: Convert to fraction form
    8,579.91/11,836.80 = 5,220.03/x
  3. Step 3: Cross multiply
    8,579.91x = 11,836.80 × 5,220.03
  4. Step 4: Simplify right side
    8,579.91x = 61,788,451.10
  5. Step 5: Solve for x
    x = 61,788,451.10/8,579.91
  6. Step 6: Final answer
    x = 7,201.53

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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.