Home / 18,886.37-28,333.62-5,739.80

Finding the Fourth Proportional to 18,886.37, 28,333.62 and 5,739.80

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Solution

The fourth proportional to 18,886.37, 28,333.62 and 5,739.80 is: 8,610.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.37 : 28,333.62 = 5,739.80 : x
  2. Step 2: Convert to fraction form
    18,886.37/28,333.62 = 5,739.80/x
  3. Step 3: Cross multiply
    18,886.37x = 28,333.62 × 5,739.80
  4. Step 4: Simplify right side
    18,886.37x = 162,629,170.41
  5. Step 5: Solve for x
    x = 162,629,170.41/18,886.37
  6. Step 6: Final answer
    x = 8,610.93

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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.