Home / 15,211.26-20,989.44-8,496.54

Finding the Fourth Proportional to 15,211.26, 20,989.44 and 8,496.54

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Solution

The fourth proportional to 15,211.26, 20,989.44 and 8,496.54 is: 11,724.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211.26 : 20,989.44 = 8,496.54 : x
  2. Step 2: Convert to fraction form
    15,211.26/20,989.44 = 8,496.54/x
  3. Step 3: Cross multiply
    15,211.26x = 20,989.44 × 8,496.54
  4. Step 4: Simplify right side
    15,211.26x = 178,337,616.54
  5. Step 5: Solve for x
    x = 178,337,616.54/15,211.26
  6. Step 6: Final answer
    x = 11,724.05

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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.