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Finding the Fourth Proportional to 12,675.14, 18,999.52 and 4,772.23

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Solution

The fourth proportional to 12,675.14, 18,999.52 and 4,772.23 is: 7,153.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,675.14 : 18,999.52 = 4,772.23 : x
  2. Step 2: Convert to fraction form
    12,675.14/18,999.52 = 4,772.23/x
  3. Step 3: Cross multiply
    12,675.14x = 18,999.52 × 4,772.23
  4. Step 4: Simplify right side
    12,675.14x = 90,670,079.33
  5. Step 5: Solve for x
    x = 90,670,079.33/12,675.14
  6. Step 6: Final answer
    x = 7,153.38

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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.