Home / 12,816.41-19,197.59-8,133.95

Finding the Fourth Proportional to 12,816.41, 19,197.59 and 8,133.95

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Solution

The fourth proportional to 12,816.41, 19,197.59 and 8,133.95 is: 12,183.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816.41 : 19,197.59 = 8,133.95 : x
  2. Step 2: Convert to fraction form
    12,816.41/19,197.59 = 8,133.95/x
  3. Step 3: Cross multiply
    12,816.41x = 19,197.59 × 8,133.95
  4. Step 4: Simplify right side
    12,816.41x = 156,152,100.52
  5. Step 5: Solve for x
    x = 156,152,100.52/12,816.41
  6. Step 6: Final answer
    x = 12,183.77

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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.