Home / 8,687.25-13,033.31-3,419.01

Finding the Fourth Proportional to 8,687.25, 13,033.31 and 3,419.01

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Solution

The fourth proportional to 8,687.25, 13,033.31 and 3,419.01 is: 5,129.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.25 : 13,033.31 = 3,419.01 : x
  2. Step 2: Convert to fraction form
    8,687.25/13,033.31 = 3,419.01/x
  3. Step 3: Cross multiply
    8,687.25x = 13,033.31 × 3,419.01
  4. Step 4: Simplify right side
    8,687.25x = 44,561,074.65
  5. Step 5: Solve for x
    x = 44,561,074.65/8,687.25
  6. Step 6: Final answer
    x = 5,129.48

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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.