Home / 8,321.03-11,480.23-5,177.02

Finding the Fourth Proportional to 8,321.03, 11,480.23 and 5,177.02

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Solution

The fourth proportional to 8,321.03, 11,480.23 and 5,177.02 is: 7,142.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321.03 : 11,480.23 = 5,177.02 : x
  2. Step 2: Convert to fraction form
    8,321.03/11,480.23 = 5,177.02/x
  3. Step 3: Cross multiply
    8,321.03x = 11,480.23 × 5,177.02
  4. Step 4: Simplify right side
    8,321.03x = 59,433,380.31
  5. Step 5: Solve for x
    x = 59,433,380.31/8,321.03
  6. Step 6: Final answer
    x = 7,142.55

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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.