Home / 13,887.75-20,833.26-4,879.10

Finding the Fourth Proportional to 13,887.75, 20,833.26 and 4,879.10

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Solution

The fourth proportional to 13,887.75, 20,833.26 and 4,879.10 is: 7,319.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.75 : 20,833.26 = 4,879.10 : x
  2. Step 2: Convert to fraction form
    13,887.75/20,833.26 = 4,879.10/x
  3. Step 3: Cross multiply
    13,887.75x = 20,833.26 × 4,879.10
  4. Step 4: Simplify right side
    13,887.75x = 101,647,558.87
  5. Step 5: Solve for x
    x = 101,647,558.87/13,887.75
  6. Step 6: Final answer
    x = 7,319.22

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1.5x scale

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.