Home / 9,980.80-13,778.44-6,004.96

Finding the Fourth Proportional to 9,980.80, 13,778.44 and 6,004.96

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Solution

The fourth proportional to 9,980.80, 13,778.44 and 6,004.96 is: 8,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980.80 : 13,778.44 = 6,004.96 : x
  2. Step 2: Convert to fraction form
    9,980.80/13,778.44 = 6,004.96/x
  3. Step 3: Cross multiply
    9,980.80x = 13,778.44 × 6,004.96
  4. Step 4: Simplify right side
    9,980.80x = 82,738,981.06
  5. Step 5: Solve for x
    x = 82,738,981.06/9,980.80
  6. Step 6: Final answer
    x = 8,289.81

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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.