Home / 18,788.86-28,163.13-6,297.40

Finding the Fourth Proportional to 18,788.86, 28,163.13 and 6,297.40

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Solution

The fourth proportional to 18,788.86, 28,163.13 and 6,297.40 is: 9,439.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.86 : 28,163.13 = 6,297.40 : x
  2. Step 2: Convert to fraction form
    18,788.86/28,163.13 = 6,297.40/x
  3. Step 3: Cross multiply
    18,788.86x = 28,163.13 × 6,297.40
  4. Step 4: Simplify right side
    18,788.86x = 177,354,494.86
  5. Step 5: Solve for x
    x = 177,354,494.86/18,788.86
  6. Step 6: Final answer
    x = 9,439.34

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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.