Home / 18,834.20-25,996.26-11,280.80

Finding the Fourth Proportional to 18,834.20, 25,996.26 and 11,280.80

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Solution

The fourth proportional to 18,834.20, 25,996.26 and 11,280.80 is: 15,570.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.20 : 25,996.26 = 11,280.80 : x
  2. Step 2: Convert to fraction form
    18,834.20/25,996.26 = 11,280.80/x
  3. Step 3: Cross multiply
    18,834.20x = 25,996.26 × 11,280.80
  4. Step 4: Simplify right side
    18,834.20x = 293,258,609.81
  5. Step 5: Solve for x
    x = 293,258,609.81/18,834.20
  6. Step 6: Final answer
    x = 15,570.54

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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.