Home / 19,397.79-26,768.19-11,856.75

Finding the Fourth Proportional to 19,397.79, 26,768.19 and 11,856.75

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Solution

The fourth proportional to 19,397.79, 26,768.19 and 11,856.75 is: 16,361.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,397.79 : 26,768.19 = 11,856.75 : x
  2. Step 2: Convert to fraction form
    19,397.79/26,768.19 = 11,856.75/x
  3. Step 3: Cross multiply
    19,397.79x = 26,768.19 × 11,856.75
  4. Step 4: Simplify right side
    19,397.79x = 317,383,736.78
  5. Step 5: Solve for x
    x = 317,383,736.78/19,397.79
  6. Step 6: Final answer
    x = 16,361.85

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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.