Home / 8,182.80-11,287.44-5,790.08

Finding the Fourth Proportional to 8,182.80, 11,287.44 and 5,790.08

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Solution

The fourth proportional to 8,182.80, 11,287.44 and 5,790.08 is: 7,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,182.80 : 11,287.44 = 5,790.08 : x
  2. Step 2: Convert to fraction form
    8,182.80/11,287.44 = 5,790.08/x
  3. Step 3: Cross multiply
    8,182.80x = 11,287.44 × 5,790.08
  4. Step 4: Simplify right side
    8,182.80x = 65,355,180.60
  5. Step 5: Solve for x
    x = 65,355,180.60/8,182.80
  6. Step 6: Final answer
    x = 7,986.90

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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.