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Finding the Fourth Proportional to 8,383.12, 12,574.80 and 3,452.80

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Solution

The fourth proportional to 8,383.12, 12,574.80 and 3,452.80 is: 5,179.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,383.12 : 12,574.80 = 3,452.80 : x
  2. Step 2: Convert to fraction form
    8,383.12/12,574.80 = 3,452.80/x
  3. Step 3: Cross multiply
    8,383.12x = 12,574.80 × 3,452.80
  4. Step 4: Simplify right side
    8,383.12x = 43,418,269.44
  5. Step 5: Solve for x
    x = 43,418,269.44/8,383.12
  6. Step 6: Final answer
    x = 5,179.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.