Home / 8,005.46-12,006.77-2,161.31

Finding the Fourth Proportional to 8,005.46, 12,006.77 and 2,161.31

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Solution

The fourth proportional to 8,005.46, 12,006.77 and 2,161.31 is: 3,241.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.46 : 12,006.77 = 2,161.31 : x
  2. Step 2: Convert to fraction form
    8,005.46/12,006.77 = 2,161.31/x
  3. Step 3: Cross multiply
    8,005.46x = 12,006.77 × 2,161.31
  4. Step 4: Simplify right side
    8,005.46x = 25,950,281.23
  5. Step 5: Solve for x
    x = 25,950,281.23/8,005.46
  6. Step 6: Final answer
    x = 3,241.57

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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.