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Finding the Fourth Proportional to 14,999.50, 20,699.31 and 8,375.50

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Solution

The fourth proportional to 14,999.50, 20,699.31 and 8,375.50 is: 11,558.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,999.50 : 20,699.31 = 8,375.50 : x
  2. Step 2: Convert to fraction form
    14,999.50/20,699.31 = 8,375.50/x
  3. Step 3: Cross multiply
    14,999.50x = 20,699.31 × 8,375.50
  4. Step 4: Simplify right side
    14,999.50x = 173,367,070.91
  5. Step 5: Solve for x
    x = 173,367,070.91/14,999.50
  6. Step 6: Final answer
    x = 11,558.19

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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.