Home / 10,028.80-15,049.68-7,569.28

Finding the Fourth Proportional to 10,028.80, 15,049.68 and 7,569.28

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Solution

The fourth proportional to 10,028.80, 15,049.68 and 7,569.28 is: 11,358.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,028.80 : 15,049.68 = 7,569.28 : x
  2. Step 2: Convert to fraction form
    10,028.80/15,049.68 = 7,569.28/x
  3. Step 3: Cross multiply
    10,028.80x = 15,049.68 × 7,569.28
  4. Step 4: Simplify right side
    10,028.80x = 113,915,241.83
  5. Step 5: Solve for x
    x = 113,915,241.83/10,028.80
  6. Step 6: Final answer
    x = 11,358.81

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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.