Home / 11,651.26-16,078.18-6,614.81

Finding the Fourth Proportional to 11,651.26, 16,078.18 and 6,614.81

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Solution

The fourth proportional to 11,651.26, 16,078.18 and 6,614.81 is: 9,128.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,651.26 : 16,078.18 = 6,614.81 : x
  2. Step 2: Convert to fraction form
    11,651.26/16,078.18 = 6,614.81/x
  3. Step 3: Cross multiply
    11,651.26x = 16,078.18 × 6,614.81
  4. Step 4: Simplify right side
    11,651.26x = 106,354,105.85
  5. Step 5: Solve for x
    x = 106,354,105.85/11,651.26
  6. Step 6: Final answer
    x = 9,128.12

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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.