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Finding the Fourth Proportional to 7,845, 10,826.10 and 4,308.27

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Solution

The fourth proportional to 7,845, 10,826.10 and 4,308.27 is: 5,945.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845 : 10,826.10 = 4,308.27 : x
  2. Step 2: Convert to fraction form
    7,845/10,826.10 = 4,308.27/x
  3. Step 3: Cross multiply
    7,845x = 10,826.10 × 4,308.27
  4. Step 4: Simplify right side
    7,845x = 46,641,761.85
  5. Step 5: Solve for x
    x = 46,641,761.85/7,845
  6. Step 6: Final answer
    x = 5,945.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.