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Finding the Fourth Proportional to 14,424.88, 19,906.34 and 7,800.88

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Solution

The fourth proportional to 14,424.88, 19,906.34 and 7,800.88 is: 10,765.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,424.88 : 19,906.34 = 7,800.88 : x
  2. Step 2: Convert to fraction form
    14,424.88/19,906.34 = 7,800.88/x
  3. Step 3: Cross multiply
    14,424.88x = 19,906.34 × 7,800.88
  4. Step 4: Simplify right side
    14,424.88x = 155,286,969.58
  5. Step 5: Solve for x
    x = 155,286,969.58/14,424.88
  6. Step 6: Final answer
    x = 10,765.22

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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.