Home / 8,455.85-12,683.75-3,392.33

Finding the Fourth Proportional to 8,455.85, 12,683.75 and 3,392.33

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Solution

The fourth proportional to 8,455.85, 12,683.75 and 3,392.33 is: 5,088.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.85 : 12,683.75 = 3,392.33 : x
  2. Step 2: Convert to fraction form
    8,455.85/12,683.75 = 3,392.33/x
  3. Step 3: Cross multiply
    8,455.85x = 12,683.75 × 3,392.33
  4. Step 4: Simplify right side
    8,455.85x = 43,027,410.70
  5. Step 5: Solve for x
    x = 43,027,410.70/8,455.85
  6. Step 6: Final answer
    x = 5,088.48

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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.