Home / 8,165.35-11,268.21-4,628.80

Finding the Fourth Proportional to 8,165.35, 11,268.21 and 4,628.80

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Solution

The fourth proportional to 8,165.35, 11,268.21 and 4,628.80 is: 6,387.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165.35 : 11,268.21 = 4,628.80 : x
  2. Step 2: Convert to fraction form
    8,165.35/11,268.21 = 4,628.80/x
  3. Step 3: Cross multiply
    8,165.35x = 11,268.21 × 4,628.80
  4. Step 4: Simplify right side
    8,165.35x = 52,158,290.45
  5. Step 5: Solve for x
    x = 52,158,290.45/8,165.35
  6. Step 6: Final answer
    x = 6,387.76

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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.