Home / 19,878.33-27,434.57-11,494.83

Finding the Fourth Proportional to 19,878.33, 27,434.57 and 11,494.83

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Solution

The fourth proportional to 19,878.33, 27,434.57 and 11,494.83 is: 15,864.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.33 : 27,434.57 = 11,494.83 : x
  2. Step 2: Convert to fraction form
    19,878.33/27,434.57 = 11,494.83/x
  3. Step 3: Cross multiply
    19,878.33x = 27,434.57 × 11,494.83
  4. Step 4: Simplify right side
    19,878.33x = 315,355,660.80
  5. Step 5: Solve for x
    x = 315,355,660.80/19,878.33
  6. Step 6: Final answer
    x = 15,864.29

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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.