Home / 12,516.64-18,682.60-11,040.80

Finding the Fourth Proportional to 12,516.64, 18,682.60 and 11,040.80

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Solution

The fourth proportional to 12,516.64, 18,682.60 and 11,040.80 is: 16,479.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.64 : 18,682.60 = 11,040.80 : x
  2. Step 2: Convert to fraction form
    12,516.64/18,682.60 = 11,040.80/x
  3. Step 3: Cross multiply
    12,516.64x = 18,682.60 × 11,040.80
  4. Step 4: Simplify right side
    12,516.64x = 206,270,850.08
  5. Step 5: Solve for x
    x = 206,270,850.08/12,516.64
  6. Step 6: Final answer
    x = 16,479.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.