Home / 8,682.68-13,021.35-3,135.32

Finding the Fourth Proportional to 8,682.68, 13,021.35 and 3,135.32

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Solution

The fourth proportional to 8,682.68, 13,021.35 and 3,135.32 is: 4,702.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.68 : 13,021.35 = 3,135.32 : x
  2. Step 2: Convert to fraction form
    8,682.68/13,021.35 = 3,135.32/x
  3. Step 3: Cross multiply
    8,682.68x = 13,021.35 × 3,135.32
  4. Step 4: Simplify right side
    8,682.68x = 40,826,099.08
  5. Step 5: Solve for x
    x = 40,826,099.08/8,682.68
  6. Step 6: Final answer
    x = 4,702.02

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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.