Home / 7,956.78-11,935.74-2,113.26

Finding the Fourth Proportional to 7,956.78, 11,935.74 and 2,113.26

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Solution

The fourth proportional to 7,956.78, 11,935.74 and 2,113.26 is: 3,170.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.78 : 11,935.74 = 2,113.26 : x
  2. Step 2: Convert to fraction form
    7,956.78/11,935.74 = 2,113.26/x
  3. Step 3: Cross multiply
    7,956.78x = 11,935.74 × 2,113.26
  4. Step 4: Simplify right side
    7,956.78x = 25,223,321.91
  5. Step 5: Solve for x
    x = 25,223,321.91/7,956.78
  6. Step 6: Final answer
    x = 3,170.04

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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.