Home / 11,879.55-16,393.64-7,164.27

Finding the Fourth Proportional to 11,879.55, 16,393.64 and 7,164.27

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Solution

The fourth proportional to 11,879.55, 16,393.64 and 7,164.27 is: 9,886.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,879.55 : 16,393.64 = 7,164.27 : x
  2. Step 2: Convert to fraction form
    11,879.55/16,393.64 = 7,164.27/x
  3. Step 3: Cross multiply
    11,879.55x = 16,393.64 × 7,164.27
  4. Step 4: Simplify right side
    11,879.55x = 117,448,399.19
  5. Step 5: Solve for x
    x = 117,448,399.19/11,879.55
  6. Step 6: Final answer
    x = 9,886.61

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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.