Home / 11,979.21-16,495.62-11,713.68

Finding the Fourth Proportional to 11,979.21, 16,495.62 and 11,713.68

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Solution

The fourth proportional to 11,979.21, 16,495.62 and 11,713.68 is: 16,129.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.21 : 16,495.62 = 11,713.68 : x
  2. Step 2: Convert to fraction form
    11,979.21/16,495.62 = 11,713.68/x
  3. Step 3: Cross multiply
    11,979.21x = 16,495.62 × 11,713.68
  4. Step 4: Simplify right side
    11,979.21x = 193,224,414.08
  5. Step 5: Solve for x
    x = 193,224,414.08/11,979.21
  6. Step 6: Final answer
    x = 16,129.98

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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.