Home / 19,398.82-26,769.66-11,857.78

Finding the Fourth Proportional to 19,398.82, 26,769.66 and 11,857.78

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Solution

The fourth proportional to 19,398.82, 26,769.66 and 11,857.78 is: 16,363.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,398.82 : 26,769.66 = 11,857.78 : x
  2. Step 2: Convert to fraction form
    19,398.82/26,769.66 = 11,857.78/x
  3. Step 3: Cross multiply
    19,398.82x = 26,769.66 × 11,857.78
  4. Step 4: Simplify right side
    19,398.82x = 317,428,738.95
  5. Step 5: Solve for x
    x = 317,428,738.95/19,398.82
  6. Step 6: Final answer
    x = 16,363.30

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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.