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Finding the Fourth Proportional to 8,835, 13,255.62 and 3,904

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Solution

The fourth proportional to 8,835, 13,255.62 and 3,904 is: 5,857.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835 : 13,255.62 = 3,904 : x
  2. Step 2: Convert to fraction form
    8,835/13,255.62 = 3,904/x
  3. Step 3: Cross multiply
    8,835x = 13,255.62 × 3,904
  4. Step 4: Simplify right side
    8,835x = 51,749,940.48
  5. Step 5: Solve for x
    x = 51,749,940.48/8,835
  6. Step 6: Final answer
    x = 5,857.38

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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.