Home / 13,724.37-18,939.77-8,059.18

Finding the Fourth Proportional to 13,724.37, 18,939.77 and 8,059.18

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Solution

The fourth proportional to 13,724.37, 18,939.77 and 8,059.18 is: 11,121.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.37 : 18,939.77 = 8,059.18 : x
  2. Step 2: Convert to fraction form
    13,724.37/18,939.77 = 8,059.18/x
  3. Step 3: Cross multiply
    13,724.37x = 18,939.77 × 8,059.18
  4. Step 4: Simplify right side
    13,724.37x = 152,639,015.59
  5. Step 5: Solve for x
    x = 152,639,015.59/13,724.37
  6. Step 6: Final answer
    x = 11,121.75

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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.