Home / 12,231.40-18,322.80-6,674.80

Finding the Fourth Proportional to 12,231.40, 18,322.80 and 6,674.80

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Solution

The fourth proportional to 12,231.40, 18,322.80 and 6,674.80 is: 9,998.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.40 : 18,322.80 = 6,674.80 : x
  2. Step 2: Convert to fraction form
    12,231.40/18,322.80 = 6,674.80/x
  3. Step 3: Cross multiply
    12,231.40x = 18,322.80 × 6,674.80
  4. Step 4: Simplify right side
    12,231.40x = 122,301,025.44
  5. Step 5: Solve for x
    x = 122,301,025.44/12,231.40
  6. Step 6: Final answer
    x = 9,998.94

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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.