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Finding the Fourth Proportional to 13,072.98, 18,040.34 and 7,104.44

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Solution

The fourth proportional to 13,072.98, 18,040.34 and 7,104.44 is: 9,803.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.98 : 18,040.34 = 7,104.44 : x
  2. Step 2: Convert to fraction form
    13,072.98/18,040.34 = 7,104.44/x
  3. Step 3: Cross multiply
    13,072.98x = 18,040.34 × 7,104.44
  4. Step 4: Simplify right side
    13,072.98x = 128,166,513.11
  5. Step 5: Solve for x
    x = 128,166,513.11/13,072.98
  6. Step 6: Final answer
    x = 9,803.92

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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.