Home / 12,211.36-16,851.60-6,906.16

Finding the Fourth Proportional to 12,211.36, 16,851.60 and 6,906.16

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Solution

The fourth proportional to 12,211.36, 16,851.60 and 6,906.16 is: 9,530.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.36 : 16,851.60 = 6,906.16 : x
  2. Step 2: Convert to fraction form
    12,211.36/16,851.60 = 6,906.16/x
  3. Step 3: Cross multiply
    12,211.36x = 16,851.60 × 6,906.16
  4. Step 4: Simplify right side
    12,211.36x = 116,379,845.86
  5. Step 5: Solve for x
    x = 116,379,845.86/12,211.36
  6. Step 6: Final answer
    x = 9,530.46

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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.