Home / 7,974.10-11,956.76-3,815.16

Finding the Fourth Proportional to 7,974.10, 11,956.76 and 3,815.16

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Solution

The fourth proportional to 7,974.10, 11,956.76 and 3,815.16 is: 5,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.10 : 11,956.76 = 3,815.16 : x
  2. Step 2: Convert to fraction form
    7,974.10/11,956.76 = 3,815.16/x
  3. Step 3: Cross multiply
    7,974.10x = 11,956.76 × 3,815.16
  4. Step 4: Simplify right side
    7,974.10x = 45,616,952.48
  5. Step 5: Solve for x
    x = 45,616,952.48/7,974.10
  6. Step 6: Final answer
    x = 5,720.64

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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.