Home / 18,788.69-28,184.90-6,945.57

Finding the Fourth Proportional to 18,788.69, 28,184.90 and 6,945.57

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Solution

The fourth proportional to 18,788.69, 28,184.90 and 6,945.57 is: 10,419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.69 : 28,184.90 = 6,945.57 : x
  2. Step 2: Convert to fraction form
    18,788.69/28,184.90 = 6,945.57/x
  3. Step 3: Cross multiply
    18,788.69x = 28,184.90 × 6,945.57
  4. Step 4: Simplify right side
    18,788.69x = 195,760,054.97
  5. Step 5: Solve for x
    x = 195,760,054.97/18,788.69
  6. Step 6: Final answer
    x = 10,419.04

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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.