Home / 8,005.52-12,006.92-2,160.77

Finding the Fourth Proportional to 8,005.52, 12,006.92 and 2,160.77

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Solution

The fourth proportional to 8,005.52, 12,006.92 and 2,160.77 is: 3,240.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.52 : 12,006.92 = 2,160.77 : x
  2. Step 2: Convert to fraction form
    8,005.52/12,006.92 = 2,160.77/x
  3. Step 3: Cross multiply
    8,005.52x = 12,006.92 × 2,160.77
  4. Step 4: Simplify right side
    8,005.52x = 25,944,137.90
  5. Step 5: Solve for x
    x = 25,944,137.90/8,005.52
  6. Step 6: Final answer
    x = 3,240.78

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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.