Home / 11,212.32-16,815.24-3,418.50

Finding the Fourth Proportional to 11,212.32, 16,815.24 and 3,418.50

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Solution

The fourth proportional to 11,212.32, 16,815.24 and 3,418.50 is: 5,126.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.32 : 16,815.24 = 3,418.50 : x
  2. Step 2: Convert to fraction form
    11,212.32/16,815.24 = 3,418.50/x
  3. Step 3: Cross multiply
    11,212.32x = 16,815.24 × 3,418.50
  4. Step 4: Simplify right side
    11,212.32x = 57,482,897.94
  5. Step 5: Solve for x
    x = 57,482,897.94/11,212.32
  6. Step 6: Final answer
    x = 5,126.76

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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.