Home / 11,121.48-16,680.96-2,801.49

Finding the Fourth Proportional to 11,121.48, 16,680.96 and 2,801.49

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Solution

The fourth proportional to 11,121.48, 16,680.96 and 2,801.49 is: 4,201.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.48 : 16,680.96 = 2,801.49 : x
  2. Step 2: Convert to fraction form
    11,121.48/16,680.96 = 2,801.49/x
  3. Step 3: Cross multiply
    11,121.48x = 16,680.96 × 2,801.49
  4. Step 4: Simplify right side
    11,121.48x = 46,731,542.63
  5. Step 5: Solve for x
    x = 46,731,542.63/11,121.48
  6. Step 6: Final answer
    x = 4,201.92

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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.