Home / 12,131.37-18,197.87-6,926.31

Finding the Fourth Proportional to 12,131.37, 18,197.87 and 6,926.31

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Solution

The fourth proportional to 12,131.37, 18,197.87 and 6,926.31 is: 10,389.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131.37 : 18,197.87 = 6,926.31 : x
  2. Step 2: Convert to fraction form
    12,131.37/18,197.87 = 6,926.31/x
  3. Step 3: Cross multiply
    12,131.37x = 18,197.87 × 6,926.31
  4. Step 4: Simplify right side
    12,131.37x = 126,044,054.33
  5. Step 5: Solve for x
    x = 126,044,054.33/12,131.37
  6. Step 6: Final answer
    x = 10,389.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.