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Finding the Fourth Proportional to 12,623.46, 17,420.36 and 7,034.46

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Solution

The fourth proportional to 12,623.46, 17,420.36 and 7,034.46 is: 9,707.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.46 : 17,420.36 = 7,034.46 : x
  2. Step 2: Convert to fraction form
    12,623.46/17,420.36 = 7,034.46/x
  3. Step 3: Cross multiply
    12,623.46x = 17,420.36 × 7,034.46
  4. Step 4: Simplify right side
    12,623.46x = 122,542,790.43
  5. Step 5: Solve for x
    x = 122,542,790.43/12,623.46
  6. Step 6: Final answer
    x = 9,707.54

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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.