Home / 15,516.26-21,414.62-8,803.54

Finding the Fourth Proportional to 15,516.26, 21,414.62 and 8,803.54

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Solution

The fourth proportional to 15,516.26, 21,414.62 and 8,803.54 is: 12,150.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,516.26 : 21,414.62 = 8,803.54 : x
  2. Step 2: Convert to fraction form
    15,516.26/21,414.62 = 8,803.54/x
  3. Step 3: Cross multiply
    15,516.26x = 21,414.62 × 8,803.54
  4. Step 4: Simplify right side
    15,516.26x = 188,524,463.75
  5. Step 5: Solve for x
    x = 188,524,463.75/15,516.26
  6. Step 6: Final answer
    x = 12,150.12

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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.