Home / 12,227.40-18,316.80-6,670.80

Finding the Fourth Proportional to 12,227.40, 18,316.80 and 6,670.80

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Solution

The fourth proportional to 12,227.40, 18,316.80 and 6,670.80 is: 9,992.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,227.40 : 18,316.80 = 6,670.80 : x
  2. Step 2: Convert to fraction form
    12,227.40/18,316.80 = 6,670.80/x
  3. Step 3: Cross multiply
    12,227.40x = 18,316.80 × 6,670.80
  4. Step 4: Simplify right side
    12,227.40x = 122,187,709.44
  5. Step 5: Solve for x
    x = 122,187,709.44/12,227.40
  6. Step 6: Final answer
    x = 9,992.94

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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.