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Finding the Fourth Proportional to 8,303.36, 12,455.36 and 2,757.12

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Solution

The fourth proportional to 8,303.36, 12,455.36 and 2,757.12 is: 4,135.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,303.36 : 12,455.36 = 2,757.12 : x
  2. Step 2: Convert to fraction form
    8,303.36/12,455.36 = 2,757.12/x
  3. Step 3: Cross multiply
    8,303.36x = 12,455.36 × 2,757.12
  4. Step 4: Simplify right side
    8,303.36x = 34,340,922.16
  5. Step 5: Solve for x
    x = 34,340,922.16/8,303.36
  6. Step 6: Final answer
    x = 4,135.79

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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.