Home / 7,619.05-11,431.31-5,535.53

Finding the Fourth Proportional to 7,619.05, 11,431.31 and 5,535.53

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Solution

The fourth proportional to 7,619.05, 11,431.31 and 5,535.53 is: 8,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.05 : 11,431.31 = 5,535.53 : x
  2. Step 2: Convert to fraction form
    7,619.05/11,431.31 = 5,535.53/x
  3. Step 3: Cross multiply
    7,619.05x = 11,431.31 × 5,535.53
  4. Step 4: Simplify right side
    7,619.05x = 63,278,274.61
  5. Step 5: Solve for x
    x = 63,278,274.61/7,619.05
  6. Step 6: Final answer
    x = 8,305.27

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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.