Home / 12,060.39-18,110.49-8,136.86

Finding the Fourth Proportional to 12,060.39, 18,110.49 and 8,136.86

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Solution

The fourth proportional to 12,060.39, 18,110.49 and 8,136.86 is: 12,218.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,060.39 : 18,110.49 = 8,136.86 : x
  2. Step 2: Convert to fraction form
    12,060.39/18,110.49 = 8,136.86/x
  3. Step 3: Cross multiply
    12,060.39x = 18,110.49 × 8,136.86
  4. Step 4: Simplify right side
    12,060.39x = 147,362,400.60
  5. Step 5: Solve for x
    x = 147,362,400.60/12,060.39
  6. Step 6: Final answer
    x = 12,218.71

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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.