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Finding the Fourth Proportional to 11,897.82, 16,410.87 and 6,929.82

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Solution

The fourth proportional to 11,897.82, 16,410.87 and 6,929.82 is: 9,558.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.82 : 16,410.87 = 6,929.82 : x
  2. Step 2: Convert to fraction form
    11,897.82/16,410.87 = 6,929.82/x
  3. Step 3: Cross multiply
    11,897.82x = 16,410.87 × 6,929.82
  4. Step 4: Simplify right side
    11,897.82x = 113,724,375.14
  5. Step 5: Solve for x
    x = 113,724,375.14/11,897.82
  6. Step 6: Final answer
    x = 9,558.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.