Home / 18,837.75-28,257.17-4,986.75

Finding the Fourth Proportional to 18,837.75, 28,257.17 and 4,986.75

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Solution

The fourth proportional to 18,837.75, 28,257.17 and 4,986.75 is: 7,480.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.75 : 28,257.17 = 4,986.75 : x
  2. Step 2: Convert to fraction form
    18,837.75/28,257.17 = 4,986.75/x
  3. Step 3: Cross multiply
    18,837.75x = 28,257.17 × 4,986.75
  4. Step 4: Simplify right side
    18,837.75x = 140,911,442.50
  5. Step 5: Solve for x
    x = 140,911,442.50/18,837.75
  6. Step 6: Final answer
    x = 7,480.27

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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.