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Finding the Fourth Proportional to 12,491.03, 17,236.64 and 7,184.82

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Solution

The fourth proportional to 12,491.03, 17,236.64 and 7,184.82 is: 9,914.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.03 : 17,236.64 = 7,184.82 : x
  2. Step 2: Convert to fraction form
    12,491.03/17,236.64 = 7,184.82/x
  3. Step 3: Cross multiply
    12,491.03x = 17,236.64 × 7,184.82
  4. Step 4: Simplify right side
    12,491.03x = 123,842,119.88
  5. Step 5: Solve for x
    x = 123,842,119.88/12,491.03
  6. Step 6: Final answer
    x = 9,914.49

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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.