Home / 7,829.36-11,747.90-3,668.64

Finding the Fourth Proportional to 7,829.36, 11,747.90 and 3,668.64

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Solution

The fourth proportional to 7,829.36, 11,747.90 and 3,668.64 is: 5,504.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,829.36 : 11,747.90 = 3,668.64 : x
  2. Step 2: Convert to fraction form
    7,829.36/11,747.90 = 3,668.64/x
  3. Step 3: Cross multiply
    7,829.36x = 11,747.90 × 3,668.64
  4. Step 4: Simplify right side
    7,829.36x = 43,098,815.86
  5. Step 5: Solve for x
    x = 43,098,815.86/7,829.36
  6. Step 6: Final answer
    x = 5,504.77

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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.