Home / 7,885.06-11,819.49-2,687.02

Finding the Fourth Proportional to 7,885.06, 11,819.49 and 2,687.02

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Solution

The fourth proportional to 7,885.06, 11,819.49 and 2,687.02 is: 4,027.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.06 : 11,819.49 = 2,687.02 : x
  2. Step 2: Convert to fraction form
    7,885.06/11,819.49 = 2,687.02/x
  3. Step 3: Cross multiply
    7,885.06x = 11,819.49 × 2,687.02
  4. Step 4: Simplify right side
    7,885.06x = 31,759,206.02
  5. Step 5: Solve for x
    x = 31,759,206.02/7,885.06
  6. Step 6: Final answer
    x = 4,027.77

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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.