Home / 12,209.44-16,746.92-11,771.68

Finding the Fourth Proportional to 12,209.44, 16,746.92 and 11,771.68

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Solution

The fourth proportional to 12,209.44, 16,746.92 and 11,771.68 is: 16,146.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.44 : 16,746.92 = 11,771.68 : x
  2. Step 2: Convert to fraction form
    12,209.44/16,746.92 = 11,771.68/x
  3. Step 3: Cross multiply
    12,209.44x = 16,746.92 × 11,771.68
  4. Step 4: Simplify right side
    12,209.44x = 197,139,383.23
  5. Step 5: Solve for x
    x = 197,139,383.23/12,209.44
  6. Step 6: Final answer
    x = 16,146.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.