Home / 7,872.62-11,806.07-2,606.64

Finding the Fourth Proportional to 7,872.62, 11,806.07 and 2,606.64

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Solution

The fourth proportional to 7,872.62, 11,806.07 and 2,606.64 is: 3,909.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.62 : 11,806.07 = 2,606.64 : x
  2. Step 2: Convert to fraction form
    7,872.62/11,806.07 = 2,606.64/x
  3. Step 3: Cross multiply
    7,872.62x = 11,806.07 × 2,606.64
  4. Step 4: Simplify right side
    7,872.62x = 30,774,161.27
  5. Step 5: Solve for x
    x = 30,774,161.27/7,872.62
  6. Step 6: Final answer
    x = 3,909.01

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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.