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Finding the Fourth Proportional to 14,651.10, 20,218.58 and 7,936.71

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Solution

The fourth proportional to 14,651.10, 20,218.58 and 7,936.71 is: 10,952.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.10 : 20,218.58 = 7,936.71 : x
  2. Step 2: Convert to fraction form
    14,651.10/20,218.58 = 7,936.71/x
  3. Step 3: Cross multiply
    14,651.10x = 20,218.58 × 7,936.71
  4. Step 4: Simplify right side
    14,651.10x = 160,468,966.39
  5. Step 5: Solve for x
    x = 160,468,966.39/14,651.10
  6. Step 6: Final answer
    x = 10,952.69

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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.