Home / 10,286.76-15,428.40-3,361.24

Finding the Fourth Proportional to 10,286.76, 15,428.40 and 3,361.24

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Solution

The fourth proportional to 10,286.76, 15,428.40 and 3,361.24 is: 5,041.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.76 : 15,428.40 = 3,361.24 : x
  2. Step 2: Convert to fraction form
    10,286.76/15,428.40 = 3,361.24/x
  3. Step 3: Cross multiply
    10,286.76x = 15,428.40 × 3,361.24
  4. Step 4: Simplify right side
    10,286.76x = 51,858,555.22
  5. Step 5: Solve for x
    x = 51,858,555.22/10,286.76
  6. Step 6: Final answer
    x = 5,041.29

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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.