Home / 10,639.25-15,959.78-3,245.37

Finding the Fourth Proportional to 10,639.25, 15,959.78 and 3,245.37

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Solution

The fourth proportional to 10,639.25, 15,959.78 and 3,245.37 is: 4,868.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.25 : 15,959.78 = 3,245.37 : x
  2. Step 2: Convert to fraction form
    10,639.25/15,959.78 = 3,245.37/x
  3. Step 3: Cross multiply
    10,639.25x = 15,959.78 × 3,245.37
  4. Step 4: Simplify right side
    10,639.25x = 51,795,345.57
  5. Step 5: Solve for x
    x = 51,795,345.57/10,639.25
  6. Step 6: Final answer
    x = 4,868.33

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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.