Home / 19,809.68-27,336.42-11,856.28

Finding the Fourth Proportional to 19,809.68, 27,336.42 and 11,856.28

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Solution

The fourth proportional to 19,809.68, 27,336.42 and 11,856.28 is: 16,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.68 : 27,336.42 = 11,856.28 : x
  2. Step 2: Convert to fraction form
    19,809.68/27,336.42 = 11,856.28/x
  3. Step 3: Cross multiply
    19,809.68x = 27,336.42 × 11,856.28
  4. Step 4: Simplify right side
    19,809.68x = 324,108,249.72
  5. Step 5: Solve for x
    x = 324,108,249.72/19,809.68
  6. Step 6: Final answer
    x = 16,361.10

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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.