Home / 11,516.18-15,892.16-6,480.41

Finding the Fourth Proportional to 11,516.18, 15,892.16 and 6,480.41

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Solution

The fourth proportional to 11,516.18, 15,892.16 and 6,480.41 is: 8,942.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,516.18 : 15,892.16 = 6,480.41 : x
  2. Step 2: Convert to fraction form
    11,516.18/15,892.16 = 6,480.41/x
  3. Step 3: Cross multiply
    11,516.18x = 15,892.16 × 6,480.41
  4. Step 4: Simplify right side
    11,516.18x = 102,987,600.72
  5. Step 5: Solve for x
    x = 102,987,600.72/11,516.18
  6. Step 6: Final answer
    x = 8,942.87

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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.