Home / 7,983.65-11,967.36-3,817.55

Finding the Fourth Proportional to 7,983.65, 11,967.36 and 3,817.55

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Solution

The fourth proportional to 7,983.65, 11,967.36 and 3,817.55 is: 5,722.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.65 : 11,967.36 = 3,817.55 : x
  2. Step 2: Convert to fraction form
    7,983.65/11,967.36 = 3,817.55/x
  3. Step 3: Cross multiply
    7,983.65x = 11,967.36 × 3,817.55
  4. Step 4: Simplify right side
    7,983.65x = 45,685,935.33
  5. Step 5: Solve for x
    x = 45,685,935.33/7,983.65
  6. Step 6: Final answer
    x = 5,722.44

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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.