Home / 7,398.72-11,107.80-5,208.48

Finding the Fourth Proportional to 7,398.72, 11,107.80 and 5,208.48

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Solution

The fourth proportional to 7,398.72, 11,107.80 and 5,208.48 is: 7,819.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,398.72 : 11,107.80 = 5,208.48 : x
  2. Step 2: Convert to fraction form
    7,398.72/11,107.80 = 5,208.48/x
  3. Step 3: Cross multiply
    7,398.72x = 11,107.80 × 5,208.48
  4. Step 4: Simplify right side
    7,398.72x = 57,854,754.14
  5. Step 5: Solve for x
    x = 57,854,754.14/7,398.72
  6. Step 6: Final answer
    x = 7,819.56

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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.