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Finding the Fourth Proportional to 11,658.82, 17,490.06 and 3,869.44

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Solution

The fourth proportional to 11,658.82, 17,490.06 and 3,869.44 is: 5,804.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,658.82 : 17,490.06 = 3,869.44 : x
  2. Step 2: Convert to fraction form
    11,658.82/17,490.06 = 3,869.44/x
  3. Step 3: Cross multiply
    11,658.82x = 17,490.06 × 3,869.44
  4. Step 4: Simplify right side
    11,658.82x = 67,676,737.77
  5. Step 5: Solve for x
    x = 67,676,737.77/11,658.82
  6. Step 6: Final answer
    x = 5,804.77

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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.