Home / 7,975.64-11,956.44-4,279.88

Finding the Fourth Proportional to 7,975.64, 11,956.44 and 4,279.88

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Solution

The fourth proportional to 7,975.64, 11,956.44 and 4,279.88 is: 6,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.64 : 11,956.44 = 4,279.88 : x
  2. Step 2: Convert to fraction form
    7,975.64/11,956.44 = 4,279.88/x
  3. Step 3: Cross multiply
    7,975.64x = 11,956.44 × 4,279.88
  4. Step 4: Simplify right side
    7,975.64x = 51,172,128.43
  5. Step 5: Solve for x
    x = 51,172,128.43/7,975.64
  6. Step 6: Final answer
    x = 6,416.05

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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.