Home / 7,639.56-11,456.69-3,636.45

Finding the Fourth Proportional to 7,639.56, 11,456.69 and 3,636.45

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Solution

The fourth proportional to 7,639.56, 11,456.69 and 3,636.45 is: 5,453.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.56 : 11,456.69 = 3,636.45 : x
  2. Step 2: Convert to fraction form
    7,639.56/11,456.69 = 3,636.45/x
  3. Step 3: Cross multiply
    7,639.56x = 11,456.69 × 3,636.45
  4. Step 4: Simplify right side
    7,639.56x = 41,661,662.17
  5. Step 5: Solve for x
    x = 41,661,662.17/7,639.56
  6. Step 6: Final answer
    x = 5,453.41

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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.