Home / 18,914.29-26,084.49-15,137.80

Finding the Fourth Proportional to 18,914.29, 26,084.49 and 15,137.80

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Solution

The fourth proportional to 18,914.29, 26,084.49 and 15,137.80 is: 20,876.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,914.29 : 26,084.49 = 15,137.80 : x
  2. Step 2: Convert to fraction form
    18,914.29/26,084.49 = 15,137.80/x
  3. Step 3: Cross multiply
    18,914.29x = 26,084.49 × 15,137.80
  4. Step 4: Simplify right side
    18,914.29x = 394,861,662.30
  5. Step 5: Solve for x
    x = 394,861,662.30/18,914.29
  6. Step 6: Final answer
    x = 20,876.37

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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.