Home / 11,218.88-16,830.18-4,201.37

Finding the Fourth Proportional to 11,218.88, 16,830.18 and 4,201.37

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Solution

The fourth proportional to 11,218.88, 16,830.18 and 4,201.37 is: 6,302.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.88 : 16,830.18 = 4,201.37 : x
  2. Step 2: Convert to fraction form
    11,218.88/16,830.18 = 4,201.37/x
  3. Step 3: Cross multiply
    11,218.88x = 16,830.18 × 4,201.37
  4. Step 4: Simplify right side
    11,218.88x = 70,709,813.35
  5. Step 5: Solve for x
    x = 70,709,813.35/11,218.88
  6. Step 6: Final answer
    x = 6,302.75

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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.