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Finding the Fourth Proportional to 8,696.80, 13,035.84 and 3,768.76

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Solution

The fourth proportional to 8,696.80, 13,035.84 and 3,768.76 is: 5,649.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.80 : 13,035.84 = 3,768.76 : x
  2. Step 2: Convert to fraction form
    8,696.80/13,035.84 = 3,768.76/x
  3. Step 3: Cross multiply
    8,696.80x = 13,035.84 × 3,768.76
  4. Step 4: Simplify right side
    8,696.80x = 49,128,952.36
  5. Step 5: Solve for x
    x = 49,128,952.36/8,696.80
  6. Step 6: Final answer
    x = 5,649.08

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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.