Home / 11,219.72-16,830.11-4,201.54

Finding the Fourth Proportional to 11,219.72, 16,830.11 and 4,201.54

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Solution

The fourth proportional to 11,219.72, 16,830.11 and 4,201.54 is: 6,302.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.72 : 16,830.11 = 4,201.54 : x
  2. Step 2: Convert to fraction form
    11,219.72/16,830.11 = 4,201.54/x
  3. Step 3: Cross multiply
    11,219.72x = 16,830.11 × 4,201.54
  4. Step 4: Simplify right side
    11,219.72x = 70,712,348.80
  5. Step 5: Solve for x
    x = 70,712,348.80/11,219.72
  6. Step 6: Final answer
    x = 6,302.51

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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.