Home / 7,964.49-11,946.75-3,287.16

Finding the Fourth Proportional to 7,964.49, 11,946.75 and 3,287.16

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Solution

The fourth proportional to 7,964.49, 11,946.75 and 3,287.16 is: 4,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.49 : 11,946.75 = 3,287.16 : x
  2. Step 2: Convert to fraction form
    7,964.49/11,946.75 = 3,287.16/x
  3. Step 3: Cross multiply
    7,964.49x = 11,946.75 × 3,287.16
  4. Step 4: Simplify right side
    7,964.49x = 39,270,878.73
  5. Step 5: Solve for x
    x = 39,270,878.73/7,964.49
  6. Step 6: Final answer
    x = 4,930.75

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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.