Home / 11,970.74-17,956.20-4,179.56

Finding the Fourth Proportional to 11,970.74, 17,956.20 and 4,179.56

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Solution

The fourth proportional to 11,970.74, 17,956.20 and 4,179.56 is: 6,269.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970.74 : 17,956.20 = 4,179.56 : x
  2. Step 2: Convert to fraction form
    11,970.74/17,956.20 = 4,179.56/x
  3. Step 3: Cross multiply
    11,970.74x = 17,956.20 × 4,179.56
  4. Step 4: Simplify right side
    11,970.74x = 75,049,015.27
  5. Step 5: Solve for x
    x = 75,049,015.27/11,970.74
  6. Step 6: Final answer
    x = 6,269.37

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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.