Home / 17,919.64-26,879.46-4,771.36

Finding the Fourth Proportional to 17,919.64, 26,879.46 and 4,771.36

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Solution

The fourth proportional to 17,919.64, 26,879.46 and 4,771.36 is: 7,157.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,919.64 : 26,879.46 = 4,771.36 : x
  2. Step 2: Convert to fraction form
    17,919.64/26,879.46 = 4,771.36/x
  3. Step 3: Cross multiply
    17,919.64x = 26,879.46 × 4,771.36
  4. Step 4: Simplify right side
    17,919.64x = 128,251,580.27
  5. Step 5: Solve for x
    x = 128,251,580.27/17,919.64
  6. Step 6: Final answer
    x = 7,157.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.