Home / 18,739.87-28,100.25-6,255.41

Finding the Fourth Proportional to 18,739.87, 28,100.25 and 6,255.41

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Solution

The fourth proportional to 18,739.87, 28,100.25 and 6,255.41 is: 9,379.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.87 : 28,100.25 = 6,255.41 : x
  2. Step 2: Convert to fraction form
    18,739.87/28,100.25 = 6,255.41/x
  3. Step 3: Cross multiply
    18,739.87x = 28,100.25 × 6,255.41
  4. Step 4: Simplify right side
    18,739.87x = 175,778,444.35
  5. Step 5: Solve for x
    x = 175,778,444.35/18,739.87
  6. Step 6: Final answer
    x = 9,379.92

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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.