Home / 12,211.90-16,852.32-6,906.73

Finding the Fourth Proportional to 12,211.90, 16,852.32 and 6,906.73

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Solution

The fourth proportional to 12,211.90, 16,852.32 and 6,906.73 is: 9,531.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.90 : 16,852.32 = 6,906.73 : x
  2. Step 2: Convert to fraction form
    12,211.90/16,852.32 = 6,906.73/x
  3. Step 3: Cross multiply
    12,211.90x = 16,852.32 × 6,906.73
  4. Step 4: Simplify right side
    12,211.90x = 116,394,424.11
  5. Step 5: Solve for x
    x = 116,394,424.11/12,211.90
  6. Step 6: Final answer
    x = 9,531.23

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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.