Home / 12,651.44-17,452.79-8,179.03

Finding the Fourth Proportional to 12,651.44, 17,452.79 and 8,179.03

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Solution

The fourth proportional to 12,651.44, 17,452.79 and 8,179.03 is: 11,283.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,651.44 : 17,452.79 = 8,179.03 : x
  2. Step 2: Convert to fraction form
    12,651.44/17,452.79 = 8,179.03/x
  3. Step 3: Cross multiply
    12,651.44x = 17,452.79 × 8,179.03
  4. Step 4: Simplify right side
    12,651.44x = 142,746,829.42
  5. Step 5: Solve for x
    x = 142,746,829.42/12,651.44
  6. Step 6: Final answer
    x = 11,283.05

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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.