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Finding the Fourth Proportional to 12,511.88, 17,266.94 and 6,922.88

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Solution

The fourth proportional to 12,511.88, 17,266.94 and 6,922.88 is: 9,553.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.88 : 17,266.94 = 6,922.88 : x
  2. Step 2: Convert to fraction form
    12,511.88/17,266.94 = 6,922.88/x
  3. Step 3: Cross multiply
    12,511.88x = 17,266.94 × 6,922.88
  4. Step 4: Simplify right side
    12,511.88x = 119,536,953.59
  5. Step 5: Solve for x
    x = 119,536,953.59/12,511.88
  6. Step 6: Final answer
    x = 9,553.88

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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.