Home / 19,856.70-27,394.38-11,899.62

Finding the Fourth Proportional to 19,856.70, 27,394.38 and 11,899.62

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Solution

The fourth proportional to 19,856.70, 27,394.38 and 11,899.62 is: 16,416.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.70 : 27,394.38 = 11,899.62 : x
  2. Step 2: Convert to fraction form
    19,856.70/27,394.38 = 11,899.62/x
  3. Step 3: Cross multiply
    19,856.70x = 27,394.38 × 11,899.62
  4. Step 4: Simplify right side
    19,856.70x = 325,982,712.14
  5. Step 5: Solve for x
    x = 325,982,712.14/19,856.70
  6. Step 6: Final answer
    x = 16,416.76

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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.