Home / 11,278.37-16,917.49-8,815.27

Finding the Fourth Proportional to 11,278.37, 16,917.49 and 8,815.27

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Solution

The fourth proportional to 11,278.37, 16,917.49 and 8,815.27 is: 13,222.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.37 : 16,917.49 = 8,815.27 : x
  2. Step 2: Convert to fraction form
    11,278.37/16,917.49 = 8,815.27/x
  3. Step 3: Cross multiply
    11,278.37x = 16,917.49 × 8,815.27
  4. Step 4: Simplify right side
    11,278.37x = 149,132,129.49
  5. Step 5: Solve for x
    x = 149,132,129.49/11,278.37
  6. Step 6: Final answer
    x = 13,222.84

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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.