Home / 11,863.30-16,370.84-6,485.64

Finding the Fourth Proportional to 11,863.30, 16,370.84 and 6,485.64

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Solution

The fourth proportional to 11,863.30, 16,370.84 and 6,485.64 is: 8,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,863.30 : 16,370.84 = 6,485.64 : x
  2. Step 2: Convert to fraction form
    11,863.30/16,370.84 = 6,485.64/x
  3. Step 3: Cross multiply
    11,863.30x = 16,370.84 × 6,485.64
  4. Step 4: Simplify right side
    11,863.30x = 106,175,329.56
  5. Step 5: Solve for x
    x = 106,175,329.56/11,863.30
  6. Step 6: Final answer
    x = 8,949.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.