Home / 7,980.35-11,016.81-6,183.86

Finding the Fourth Proportional to 7,980.35, 11,016.81 and 6,183.86

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Solution

The fourth proportional to 7,980.35, 11,016.81 and 6,183.86 is: 8,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.35 : 11,016.81 = 6,183.86 : x
  2. Step 2: Convert to fraction form
    7,980.35/11,016.81 = 6,183.86/x
  3. Step 3: Cross multiply
    7,980.35x = 11,016.81 × 6,183.86
  4. Step 4: Simplify right side
    7,980.35x = 68,126,355.60
  5. Step 5: Solve for x
    x = 68,126,355.60/7,980.35
  6. Step 6: Final answer
    x = 8,536.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.