Home / 11,445.12-17,091.51-11,321.43

Finding the Fourth Proportional to 11,445.12, 17,091.51 and 11,321.43

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Solution

The fourth proportional to 11,445.12, 17,091.51 and 11,321.43 is: 16,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.12 : 17,091.51 = 11,321.43 : x
  2. Step 2: Convert to fraction form
    11,445.12/17,091.51 = 11,321.43/x
  3. Step 3: Cross multiply
    11,445.12x = 17,091.51 × 11,321.43
  4. Step 4: Simplify right side
    11,445.12x = 193,500,334.06
  5. Step 5: Solve for x
    x = 193,500,334.06/11,445.12
  6. Step 6: Final answer
    x = 16,906.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.