Home / 10,087.25-15,133.31-3,161.75

Finding the Fourth Proportional to 10,087.25, 15,133.31 and 3,161.75

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Solution

The fourth proportional to 10,087.25, 15,133.31 and 3,161.75 is: 4,743.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.25 : 15,133.31 = 3,161.75 : x
  2. Step 2: Convert to fraction form
    10,087.25/15,133.31 = 3,161.75/x
  3. Step 3: Cross multiply
    10,087.25x = 15,133.31 × 3,161.75
  4. Step 4: Simplify right side
    10,087.25x = 47,847,727.08
  5. Step 5: Solve for x
    x = 47,847,727.08/10,087.25
  6. Step 6: Final answer
    x = 4,743.39

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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.