Home / 12,766.91-19,191.36-11,853.83

Finding the Fourth Proportional to 12,766.91, 19,191.36 and 11,853.83

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Solution

The fourth proportional to 12,766.91, 19,191.36 and 11,853.83 is: 17,818.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,766.91 : 19,191.36 = 11,853.83 : x
  2. Step 2: Convert to fraction form
    12,766.91/19,191.36 = 11,853.83/x
  3. Step 3: Cross multiply
    12,766.91x = 19,191.36 × 11,853.83
  4. Step 4: Simplify right side
    12,766.91x = 227,491,022.95
  5. Step 5: Solve for x
    x = 227,491,022.95/12,766.91
  6. Step 6: Final answer
    x = 17,818.81

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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.