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Finding the Fourth Proportional to 10,787.80, 14,887.11 and 6,072.12

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Solution

The fourth proportional to 10,787.80, 14,887.11 and 6,072.12 is: 8,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.80 : 14,887.11 = 6,072.12 : x
  2. Step 2: Convert to fraction form
    10,787.80/14,887.11 = 6,072.12/x
  3. Step 3: Cross multiply
    10,787.80x = 14,887.11 × 6,072.12
  4. Step 4: Simplify right side
    10,787.80x = 90,396,318.37
  5. Step 5: Solve for x
    x = 90,396,318.37/10,787.80
  6. Step 6: Final answer
    x = 8,379.50

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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.