Home / 8,455.36-12,679.44-4,235.82

Finding the Fourth Proportional to 8,455.36, 12,679.44 and 4,235.82

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Solution

The fourth proportional to 8,455.36, 12,679.44 and 4,235.82 is: 6,351.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.36 : 12,679.44 = 4,235.82 : x
  2. Step 2: Convert to fraction form
    8,455.36/12,679.44 = 4,235.82/x
  3. Step 3: Cross multiply
    8,455.36x = 12,679.44 × 4,235.82
  4. Step 4: Simplify right side
    8,455.36x = 53,707,825.54
  5. Step 5: Solve for x
    x = 53,707,825.54/8,455.36
  6. Step 6: Final answer
    x = 6,351.93

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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.