Home / 13,759.20-18,986.94-8,094.60

Finding the Fourth Proportional to 13,759.20, 18,986.94 and 8,094.60

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Solution

The fourth proportional to 13,759.20, 18,986.94 and 8,094.60 is: 11,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,759.20 : 18,986.94 = 8,094.60 : x
  2. Step 2: Convert to fraction form
    13,759.20/18,986.94 = 8,094.60/x
  3. Step 3: Cross multiply
    13,759.20x = 18,986.94 × 8,094.60
  4. Step 4: Simplify right side
    13,759.20x = 153,691,684.52
  5. Step 5: Solve for x
    x = 153,691,684.52/13,759.20
  6. Step 6: Final answer
    x = 11,170.10

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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.