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Finding the Fourth Proportional to 14,015.97, 19,341.96 and 7,728.35

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Solution

The fourth proportional to 14,015.97, 19,341.96 and 7,728.35 is: 10,665.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.97 : 19,341.96 = 7,728.35 : x
  2. Step 2: Convert to fraction form
    14,015.97/19,341.96 = 7,728.35/x
  3. Step 3: Cross multiply
    14,015.97x = 19,341.96 × 7,728.35
  4. Step 4: Simplify right side
    14,015.97x = 149,481,436.57
  5. Step 5: Solve for x
    x = 149,481,436.57/14,015.97
  6. Step 6: Final answer
    x = 10,665.08

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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.