Home / 13,891.01-19,169.71-8,226.07

Finding the Fourth Proportional to 13,891.01, 19,169.71 and 8,226.07

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Solution

The fourth proportional to 13,891.01, 19,169.71 and 8,226.07 is: 11,352.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.01 : 19,169.71 = 8,226.07 : x
  2. Step 2: Convert to fraction form
    13,891.01/19,169.71 = 8,226.07/x
  3. Step 3: Cross multiply
    13,891.01x = 19,169.71 × 8,226.07
  4. Step 4: Simplify right side
    13,891.01x = 157,691,307.85
  5. Step 5: Solve for x
    x = 157,691,307.85/13,891.01
  6. Step 6: Final answer
    x = 11,352.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.