Home / 12,181.20-16,766.40-10,169.04

Finding the Fourth Proportional to 12,181.20, 16,766.40 and 10,169.04

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Solution

The fourth proportional to 12,181.20, 16,766.40 and 10,169.04 is: 13,996.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.20 : 16,766.40 = 10,169.04 : x
  2. Step 2: Convert to fraction form
    12,181.20/16,766.40 = 10,169.04/x
  3. Step 3: Cross multiply
    12,181.20x = 16,766.40 × 10,169.04
  4. Step 4: Simplify right side
    12,181.20x = 170,498,192.26
  5. Step 5: Solve for x
    x = 170,498,192.26/12,181.20
  6. Step 6: Final answer
    x = 13,996.83

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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.