Home / 11,972.88-17,959.32-4,181.76

Finding the Fourth Proportional to 11,972.88, 17,959.32 and 4,181.76

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Solution

The fourth proportional to 11,972.88, 17,959.32 and 4,181.76 is: 6,272.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.88 : 17,959.32 = 4,181.76 : x
  2. Step 2: Convert to fraction form
    11,972.88/17,959.32 = 4,181.76/x
  3. Step 3: Cross multiply
    11,972.88x = 17,959.32 × 4,181.76
  4. Step 4: Simplify right side
    11,972.88x = 75,101,566.00
  5. Step 5: Solve for x
    x = 75,101,566.00/11,972.88
  6. Step 6: Final answer
    x = 6,272.64

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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.