Home / 12,231.21-16,879.13-6,927.06

Finding the Fourth Proportional to 12,231.21, 16,879.13 and 6,927.06

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Solution

The fourth proportional to 12,231.21, 16,879.13 and 6,927.06 is: 9,559.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.21 : 16,879.13 = 6,927.06 : x
  2. Step 2: Convert to fraction form
    12,231.21/16,879.13 = 6,927.06/x
  3. Step 3: Cross multiply
    12,231.21x = 16,879.13 × 6,927.06
  4. Step 4: Simplify right side
    12,231.21x = 116,922,661.86
  5. Step 5: Solve for x
    x = 116,922,661.86/12,231.21
  6. Step 6: Final answer
    x = 9,559.37

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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.