Home / 8,729.58-13,091.40-3,181.62

Finding the Fourth Proportional to 8,729.58, 13,091.40 and 3,181.62

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Solution

The fourth proportional to 8,729.58, 13,091.40 and 3,181.62 is: 4,771.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.58 : 13,091.40 = 3,181.62 : x
  2. Step 2: Convert to fraction form
    8,729.58/13,091.40 = 3,181.62/x
  3. Step 3: Cross multiply
    8,729.58x = 13,091.40 × 3,181.62
  4. Step 4: Simplify right side
    8,729.58x = 41,651,860.07
  5. Step 5: Solve for x
    x = 41,651,860.07/8,729.58
  6. Step 6: Final answer
    x = 4,771.35

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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.