Home / 11,781.58-17,674.99-3,886.55

Finding the Fourth Proportional to 11,781.58, 17,674.99 and 3,886.55

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Solution

The fourth proportional to 11,781.58, 17,674.99 and 3,886.55 is: 5,830.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.58 : 17,674.99 = 3,886.55 : x
  2. Step 2: Convert to fraction form
    11,781.58/17,674.99 = 3,886.55/x
  3. Step 3: Cross multiply
    11,781.58x = 17,674.99 × 3,886.55
  4. Step 4: Simplify right side
    11,781.58x = 68,694,624.58
  5. Step 5: Solve for x
    x = 68,694,624.58/11,781.58
  6. Step 6: Final answer
    x = 5,830.68

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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.