Home / 7,388.28-11,076.57-3,688.47

Finding the Fourth Proportional to 7,388.28, 11,076.57 and 3,688.47

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Solution

The fourth proportional to 7,388.28, 11,076.57 and 3,688.47 is: 5,529.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.28 : 11,076.57 = 3,688.47 : x
  2. Step 2: Convert to fraction form
    7,388.28/11,076.57 = 3,688.47/x
  3. Step 3: Cross multiply
    7,388.28x = 11,076.57 × 3,688.47
  4. Step 4: Simplify right side
    7,388.28x = 40,855,596.15
  5. Step 5: Solve for x
    x = 40,855,596.15/7,388.28
  6. Step 6: Final answer
    x = 5,529.78

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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.