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Finding the Fourth Proportional to 12,674.45, 17,491.20 and 7,009.45

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Solution

The fourth proportional to 12,674.45, 17,491.20 and 7,009.45 is: 9,673.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.45 : 17,491.20 = 7,009.45 : x
  2. Step 2: Convert to fraction form
    12,674.45/17,491.20 = 7,009.45/x
  3. Step 3: Cross multiply
    12,674.45x = 17,491.20 × 7,009.45
  4. Step 4: Simplify right side
    12,674.45x = 122,603,691.84
  5. Step 5: Solve for x
    x = 122,603,691.84/12,674.45
  6. Step 6: Final answer
    x = 9,673.29

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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.