Home / 12,211.86-16,852.66-6,906.57

Finding the Fourth Proportional to 12,211.86, 16,852.66 and 6,906.57

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Solution

The fourth proportional to 12,211.86, 16,852.66 and 6,906.57 is: 9,531.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.86 : 16,852.66 = 6,906.57 : x
  2. Step 2: Convert to fraction form
    12,211.86/16,852.66 = 6,906.57/x
  3. Step 3: Cross multiply
    12,211.86x = 16,852.66 × 6,906.57
  4. Step 4: Simplify right side
    12,211.86x = 116,393,995.51
  5. Step 5: Solve for x
    x = 116,393,995.51/12,211.86
  6. Step 6: Final answer
    x = 9,531.22

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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.