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Finding the Fourth Proportional to 8,449.80, 11,660.49 and 4,621.28

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Solution

The fourth proportional to 8,449.80, 11,660.49 and 4,621.28 is: 6,377.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.80 : 11,660.49 = 4,621.28 : x
  2. Step 2: Convert to fraction form
    8,449.80/11,660.49 = 4,621.28/x
  3. Step 3: Cross multiply
    8,449.80x = 11,660.49 × 4,621.28
  4. Step 4: Simplify right side
    8,449.80x = 53,886,389.23
  5. Step 5: Solve for x
    x = 53,886,389.23/8,449.80
  6. Step 6: Final answer
    x = 6,377.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.