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Finding the Fourth Proportional to 9,661.47, 14,481.06 and 4,388.57

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Solution

The fourth proportional to 9,661.47, 14,481.06 and 4,388.57 is: 6,577.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661.47 : 14,481.06 = 4,388.57 : x
  2. Step 2: Convert to fraction form
    9,661.47/14,481.06 = 4,388.57/x
  3. Step 3: Cross multiply
    9,661.47x = 14,481.06 × 4,388.57
  4. Step 4: Simplify right side
    9,661.47x = 63,551,145.48
  5. Step 5: Solve for x
    x = 63,551,145.48/9,661.47
  6. Step 6: Final answer
    x = 6,577.79

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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.