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Finding the Fourth Proportional to 17,901.82, 26,845.41 and 7,770.85

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Solution

The fourth proportional to 17,901.82, 26,845.41 and 7,770.85 is: 11,653.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,901.82 : 26,845.41 = 7,770.85 : x
  2. Step 2: Convert to fraction form
    17,901.82/26,845.41 = 7,770.85/x
  3. Step 3: Cross multiply
    17,901.82x = 26,845.41 × 7,770.85
  4. Step 4: Simplify right side
    17,901.82x = 208,611,565.99
  5. Step 5: Solve for x
    x = 208,611,565.99/17,901.82
  6. Step 6: Final answer
    x = 11,653.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.