Home / 11,946.79-17,929.46-8,274.75

Finding the Fourth Proportional to 11,946.79, 17,929.46 and 8,274.75

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Solution

The fourth proportional to 11,946.79, 17,929.46 and 8,274.75 is: 12,418.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,946.79 : 17,929.46 = 8,274.75 : x
  2. Step 2: Convert to fraction form
    11,946.79/17,929.46 = 8,274.75/x
  3. Step 3: Cross multiply
    11,946.79x = 17,929.46 × 8,274.75
  4. Step 4: Simplify right side
    11,946.79x = 148,361,799.14
  5. Step 5: Solve for x
    x = 148,361,799.14/11,946.79
  6. Step 6: Final answer
    x = 12,418.55

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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.