Home / 12,450.80-17,181.88-6,785.61

Finding the Fourth Proportional to 12,450.80, 17,181.88 and 6,785.61

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Solution

The fourth proportional to 12,450.80, 17,181.88 and 6,785.61 is: 9,364.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.80 : 17,181.88 = 6,785.61 : x
  2. Step 2: Convert to fraction form
    12,450.80/17,181.88 = 6,785.61/x
  3. Step 3: Cross multiply
    12,450.80x = 17,181.88 × 6,785.61
  4. Step 4: Simplify right side
    12,450.80x = 116,589,536.75
  5. Step 5: Solve for x
    x = 116,589,536.75/12,450.80
  6. Step 6: Final answer
    x = 9,364.02

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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.