Home / 6,518.20-9,778.23-2,015.65

Finding the Fourth Proportional to 6,518.20, 9,778.23 and 2,015.65

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Solution

The fourth proportional to 6,518.20, 9,778.23 and 2,015.65 is: 3,023.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518.20 : 9,778.23 = 2,015.65 : x
  2. Step 2: Convert to fraction form
    6,518.20/9,778.23 = 2,015.65/x
  3. Step 3: Cross multiply
    6,518.20x = 9,778.23 × 2,015.65
  4. Step 4: Simplify right side
    6,518.20x = 19,709,512.23
  5. Step 5: Solve for x
    x = 19,709,512.23/6,518.20
  6. Step 6: Final answer
    x = 3,023.77

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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.