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Finding the Fourth Proportional to 12,437.37, 18,629.73 and 9,322.11

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Solution

The fourth proportional to 12,437.37, 18,629.73 and 9,322.11 is: 13,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.37 : 18,629.73 = 9,322.11 : x
  2. Step 2: Convert to fraction form
    12,437.37/18,629.73 = 9,322.11/x
  3. Step 3: Cross multiply
    12,437.37x = 18,629.73 × 9,322.11
  4. Step 4: Simplify right side
    12,437.37x = 173,668,392.33
  5. Step 5: Solve for x
    x = 173,668,392.33/12,437.37
  6. Step 6: Final answer
    x = 13,963.43

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.