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Finding the Fourth Proportional to 12,796.47, 17,659.49 and 7,491.51

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Solution

The fourth proportional to 12,796.47, 17,659.49 and 7,491.51 is: 10,338.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,796.47 : 17,659.49 = 7,491.51 : x
  2. Step 2: Convert to fraction form
    12,796.47/17,659.49 = 7,491.51/x
  3. Step 3: Cross multiply
    12,796.47x = 17,659.49 × 7,491.51
  4. Step 4: Simplify right side
    12,796.47x = 132,296,208.47
  5. Step 5: Solve for x
    x = 132,296,208.47/12,796.47
  6. Step 6: Final answer
    x = 10,338.49

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