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Finding the Fourth Proportional to 12,803.49, 19,201.48 and 4,481.96

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Solution

The fourth proportional to 12,803.49, 19,201.48 and 4,481.96 is: 6,721.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,803.49 : 19,201.48 = 4,481.96 : x
  2. Step 2: Convert to fraction form
    12,803.49/19,201.48 = 4,481.96/x
  3. Step 3: Cross multiply
    12,803.49x = 19,201.48 × 4,481.96
  4. Step 4: Simplify right side
    12,803.49x = 86,060,158.09
  5. Step 5: Solve for x
    x = 86,060,158.09/12,803.49
  6. Step 6: Final answer
    x = 6,721.62

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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.