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Finding the Fourth Proportional to 13,952.72, 19,254.75 and 7,665.09

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Solution

The fourth proportional to 13,952.72, 19,254.75 and 7,665.09 is: 10,577.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.72 : 19,254.75 = 7,665.09 : x
  2. Step 2: Convert to fraction form
    13,952.72/19,254.75 = 7,665.09/x
  3. Step 3: Cross multiply
    13,952.72x = 19,254.75 × 7,665.09
  4. Step 4: Simplify right side
    13,952.72x = 147,589,391.68
  5. Step 5: Solve for x
    x = 147,589,391.68/13,952.72
  6. Step 6: Final answer
    x = 10,577.82

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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.