Home / 10,388.05-15,577.03-4,840.09

Finding the Fourth Proportional to 10,388.05, 15,577.03 and 4,840.09

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Solution

The fourth proportional to 10,388.05, 15,577.03 and 4,840.09 is: 7,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.05 : 15,577.03 = 4,840.09 : x
  2. Step 2: Convert to fraction form
    10,388.05/15,577.03 = 4,840.09/x
  3. Step 3: Cross multiply
    10,388.05x = 15,577.03 × 4,840.09
  4. Step 4: Simplify right side
    10,388.05x = 75,394,227.13
  5. Step 5: Solve for x
    x = 75,394,227.13/10,388.05
  6. Step 6: Final answer
    x = 7,257.78

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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.