Home / 11,292.80-16,942.13-4,272.86

Finding the Fourth Proportional to 11,292.80, 16,942.13 and 4,272.86

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Solution

The fourth proportional to 11,292.80, 16,942.13 and 4,272.86 is: 6,410.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,292.80 : 16,942.13 = 4,272.86 : x
  2. Step 2: Convert to fraction form
    11,292.80/16,942.13 = 4,272.86/x
  3. Step 3: Cross multiply
    11,292.80x = 16,942.13 × 4,272.86
  4. Step 4: Simplify right side
    11,292.80x = 72,391,243.52
  5. Step 5: Solve for x
    x = 72,391,243.52/11,292.80
  6. Step 6: Final answer
    x = 6,410.39

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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.