Home / 7,826.11-11,735.30-3,872.79

Finding the Fourth Proportional to 7,826.11, 11,735.30 and 3,872.79

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Solution

The fourth proportional to 7,826.11, 11,735.30 and 3,872.79 is: 5,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.11 : 11,735.30 = 3,872.79 : x
  2. Step 2: Convert to fraction form
    7,826.11/11,735.30 = 3,872.79/x
  3. Step 3: Cross multiply
    7,826.11x = 11,735.30 × 3,872.79
  4. Step 4: Simplify right side
    7,826.11x = 45,448,362.17
  5. Step 5: Solve for x
    x = 45,448,362.17/7,826.11
  6. Step 6: Final answer
    x = 5,807.28

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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.