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Finding the Fourth Proportional to 14,431.05, 19,914.93 and 9,135.27

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Solution

The fourth proportional to 14,431.05, 19,914.93 and 9,135.27 is: 12,606.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,431.05 : 19,914.93 = 9,135.27 : x
  2. Step 2: Convert to fraction form
    14,431.05/19,914.93 = 9,135.27/x
  3. Step 3: Cross multiply
    14,431.05x = 19,914.93 × 9,135.27
  4. Step 4: Simplify right side
    14,431.05x = 181,928,262.58
  5. Step 5: Solve for x
    x = 181,928,262.58/14,431.05
  6. Step 6: Final answer
    x = 12,606.72

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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.