Home / 11,729.75-16,187.24-6,424.22

Finding the Fourth Proportional to 11,729.75, 16,187.24 and 6,424.22

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Solution

The fourth proportional to 11,729.75, 16,187.24 and 6,424.22 is: 8,865.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.75 : 16,187.24 = 6,424.22 : x
  2. Step 2: Convert to fraction form
    11,729.75/16,187.24 = 6,424.22/x
  3. Step 3: Cross multiply
    11,729.75x = 16,187.24 × 6,424.22
  4. Step 4: Simplify right side
    11,729.75x = 103,990,277.90
  5. Step 5: Solve for x
    x = 103,990,277.90/11,729.75
  6. Step 6: Final answer
    x = 8,865.52

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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.