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Finding the Fourth Proportional to 14,504.28, 21,752.43 and 5,143.05

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Solution

The fourth proportional to 14,504.28, 21,752.43 and 5,143.05 is: 7,713.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,504.28 : 21,752.43 = 5,143.05 : x
  2. Step 2: Convert to fraction form
    14,504.28/21,752.43 = 5,143.05/x
  3. Step 3: Cross multiply
    14,504.28x = 21,752.43 × 5,143.05
  4. Step 4: Simplify right side
    14,504.28x = 111,873,835.11
  5. Step 5: Solve for x
    x = 111,873,835.11/14,504.28
  6. Step 6: Final answer
    x = 7,713.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.