Home / 18,999.33-28,499.58-6,519.18

Finding the Fourth Proportional to 18,999.33, 28,499.58 and 6,519.18

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Solution

The fourth proportional to 18,999.33, 28,499.58 and 6,519.18 is: 9,778.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.33 : 28,499.58 = 6,519.18 : x
  2. Step 2: Convert to fraction form
    18,999.33/28,499.58 = 6,519.18/x
  3. Step 3: Cross multiply
    18,999.33x = 28,499.58 × 6,519.18
  4. Step 4: Simplify right side
    18,999.33x = 185,793,891.94
  5. Step 5: Solve for x
    x = 185,793,891.94/18,999.33
  6. Step 6: Final answer
    x = 9,778.97

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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.