Home / 8,267.31-12,402.96-3,879.63

Finding the Fourth Proportional to 8,267.31, 12,402.96 and 3,879.63

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Solution

The fourth proportional to 8,267.31, 12,402.96 and 3,879.63 is: 5,820.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,267.31 : 12,402.96 = 3,879.63 : x
  2. Step 2: Convert to fraction form
    8,267.31/12,402.96 = 3,879.63/x
  3. Step 3: Cross multiply
    8,267.31x = 12,402.96 × 3,879.63
  4. Step 4: Simplify right side
    8,267.31x = 48,118,895.70
  5. Step 5: Solve for x
    x = 48,118,895.70/8,267.31
  6. Step 6: Final answer
    x = 5,820.38

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1.5x scale

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.