Home / 19,683.09-27,161.60-11,299.59

Finding the Fourth Proportional to 19,683.09, 27,161.60 and 11,299.59

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Solution

The fourth proportional to 19,683.09, 27,161.60 and 11,299.59 is: 15,592.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,683.09 : 27,161.60 = 11,299.59 : x
  2. Step 2: Convert to fraction form
    19,683.09/27,161.60 = 11,299.59/x
  3. Step 3: Cross multiply
    19,683.09x = 27,161.60 × 11,299.59
  4. Step 4: Simplify right side
    19,683.09x = 306,914,887.25
  5. Step 5: Solve for x
    x = 306,914,887.25/19,683.09
  6. Step 6: Final answer
    x = 15,592.82

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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.