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Finding the Fourth Proportional to 8,809.77, 13,206.19 and 3,261.61

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Solution

The fourth proportional to 8,809.77, 13,206.19 and 3,261.61 is: 4,889.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.77 : 13,206.19 = 3,261.61 : x
  2. Step 2: Convert to fraction form
    8,809.77/13,206.19 = 3,261.61/x
  3. Step 3: Cross multiply
    8,809.77x = 13,206.19 × 3,261.61
  4. Step 4: Simplify right side
    8,809.77x = 43,073,441.37
  5. Step 5: Solve for x
    x = 43,073,441.37/8,809.77
  6. Step 6: Final answer
    x = 4,889.28

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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.