Home / 11,151.62-15,389.21-6,436.81

Finding the Fourth Proportional to 11,151.62, 15,389.21 and 6,436.81

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Solution

The fourth proportional to 11,151.62, 15,389.21 and 6,436.81 is: 8,882.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.62 : 15,389.21 = 6,436.81 : x
  2. Step 2: Convert to fraction form
    11,151.62/15,389.21 = 6,436.81/x
  3. Step 3: Cross multiply
    11,151.62x = 15,389.21 × 6,436.81
  4. Step 4: Simplify right side
    11,151.62x = 99,057,388.64
  5. Step 5: Solve for x
    x = 99,057,388.64/11,151.62
  6. Step 6: Final answer
    x = 8,882.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.