Home / 18,860.94-28,291.41-10,083.78

Finding the Fourth Proportional to 18,860.94, 28,291.41 and 10,083.78

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Solution

The fourth proportional to 18,860.94, 28,291.41 and 10,083.78 is: 15,125.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.94 : 28,291.41 = 10,083.78 : x
  2. Step 2: Convert to fraction form
    18,860.94/28,291.41 = 10,083.78/x
  3. Step 3: Cross multiply
    18,860.94x = 28,291.41 × 10,083.78
  4. Step 4: Simplify right side
    18,860.94x = 285,284,354.33
  5. Step 5: Solve for x
    x = 285,284,354.33/18,860.94
  6. Step 6: Final answer
    x = 15,125.67

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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.