Home / 7,856.53-11,788.30-3,911.73

Finding the Fourth Proportional to 7,856.53, 11,788.30 and 3,911.73

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Solution

The fourth proportional to 7,856.53, 11,788.30 and 3,911.73 is: 5,869.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.53 : 11,788.30 = 3,911.73 : x
  2. Step 2: Convert to fraction form
    7,856.53/11,788.30 = 3,911.73/x
  3. Step 3: Cross multiply
    7,856.53x = 11,788.30 × 3,911.73
  4. Step 4: Simplify right side
    7,856.53x = 46,112,607.44
  5. Step 5: Solve for x
    x = 46,112,607.44/7,856.53
  6. Step 6: Final answer
    x = 5,869.34

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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.