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Finding the Fourth Proportional to 13,998.98, 19,318.95 and 7,625.79

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Solution

The fourth proportional to 13,998.98, 19,318.95 and 7,625.79 is: 10,523.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.98 : 19,318.95 = 7,625.79 : x
  2. Step 2: Convert to fraction form
    13,998.98/19,318.95 = 7,625.79/x
  3. Step 3: Cross multiply
    13,998.98x = 19,318.95 × 7,625.79
  4. Step 4: Simplify right side
    13,998.98x = 147,322,255.72
  5. Step 5: Solve for x
    x = 147,322,255.72/13,998.98
  6. Step 6: Final answer
    x = 10,523.79

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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.