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Finding the Fourth Proportional to 10,351.14, 15,512.73 and 7,422.99

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Solution

The fourth proportional to 10,351.14, 15,512.73 and 7,422.99 is: 11,124.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,351.14 : 15,512.73 = 7,422.99 : x
  2. Step 2: Convert to fraction form
    10,351.14/15,512.73 = 7,422.99/x
  3. Step 3: Cross multiply
    10,351.14x = 15,512.73 × 7,422.99
  4. Step 4: Simplify right side
    10,351.14x = 115,150,839.66
  5. Step 5: Solve for x
    x = 115,150,839.66/10,351.14
  6. Step 6: Final answer
    x = 11,124.46

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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.