Home / 8,320.12-11,481.27-4,542.54

Finding the Fourth Proportional to 8,320.12, 11,481.27 and 4,542.54

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Solution

The fourth proportional to 8,320.12, 11,481.27 and 4,542.54 is: 6,268.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.12 : 11,481.27 = 4,542.54 : x
  2. Step 2: Convert to fraction form
    8,320.12/11,481.27 = 4,542.54/x
  3. Step 3: Cross multiply
    8,320.12x = 11,481.27 × 4,542.54
  4. Step 4: Simplify right side
    8,320.12x = 52,154,128.23
  5. Step 5: Solve for x
    x = 52,154,128.23/8,320.12
  6. Step 6: Final answer
    x = 6,268.43

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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.