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Finding the Fourth Proportional to 14,060.78, 19,403.12 and 7,772.75

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Solution

The fourth proportional to 14,060.78, 19,403.12 and 7,772.75 is: 10,725.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,060.78 : 19,403.12 = 7,772.75 : x
  2. Step 2: Convert to fraction form
    14,060.78/19,403.12 = 7,772.75/x
  3. Step 3: Cross multiply
    14,060.78x = 19,403.12 × 7,772.75
  4. Step 4: Simplify right side
    14,060.78x = 150,815,562.12
  5. Step 5: Solve for x
    x = 150,815,562.12/14,060.78
  6. Step 6: Final answer
    x = 10,725.97

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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.