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Finding the Fourth Proportional to 9,904, 13,673.22 and 7,399.88

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Solution

The fourth proportional to 9,904, 13,673.22 and 7,399.88 is: 10,216.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,904 : 13,673.22 = 7,399.88 : x
  2. Step 2: Convert to fraction form
    9,904/13,673.22 = 7,399.88/x
  3. Step 3: Cross multiply
    9,904x = 13,673.22 × 7,399.88
  4. Step 4: Simplify right side
    9,904x = 101,180,187.21
  5. Step 5: Solve for x
    x = 101,180,187.21/9,904
  6. Step 6: Final answer
    x = 10,216.09

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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.