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Finding the Fourth Proportional to 18,754.52, 25,892.46 and 11,690.51

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Solution

The fourth proportional to 18,754.52, 25,892.46 and 11,690.51 is: 16,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.52 : 25,892.46 = 11,690.51 : x
  2. Step 2: Convert to fraction form
    18,754.52/25,892.46 = 11,690.51/x
  3. Step 3: Cross multiply
    18,754.52x = 25,892.46 × 11,690.51
  4. Step 4: Simplify right side
    18,754.52x = 302,695,933.09
  5. Step 5: Solve for x
    x = 302,695,933.09/18,754.52
  6. Step 6: Final answer
    x = 16,139.90

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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.