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Finding the Fourth Proportional to 18,491.44, 25,518.20 and 10,107.94

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Solution

The fourth proportional to 18,491.44, 25,518.20 and 10,107.94 is: 13,948.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.44 : 25,518.20 = 10,107.94 : x
  2. Step 2: Convert to fraction form
    18,491.44/25,518.20 = 10,107.94/x
  3. Step 3: Cross multiply
    18,491.44x = 25,518.20 × 10,107.94
  4. Step 4: Simplify right side
    18,491.44x = 257,936,434.51
  5. Step 5: Solve for x
    x = 257,936,434.51/18,491.44
  6. Step 6: Final answer
    x = 13,948.96

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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.