Home / 19,191.38-26,453.43-12,805.34

Finding the Fourth Proportional to 19,191.38, 26,453.43 and 12,805.34

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Solution

The fourth proportional to 19,191.38, 26,453.43 and 12,805.34 is: 17,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.38 : 26,453.43 = 12,805.34 : x
  2. Step 2: Convert to fraction form
    19,191.38/26,453.43 = 12,805.34/x
  3. Step 3: Cross multiply
    19,191.38x = 26,453.43 × 12,805.34
  4. Step 4: Simplify right side
    19,191.38x = 338,745,033.05
  5. Step 5: Solve for x
    x = 338,745,033.05/19,191.38
  6. Step 6: Final answer
    x = 17,650.90

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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.