Home / 11,418.20-17,140.10-8,832.60

Finding the Fourth Proportional to 11,418.20, 17,140.10 and 8,832.60

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Solution

The fourth proportional to 11,418.20, 17,140.10 and 8,832.60 is: 13,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.20 : 17,140.10 = 8,832.60 : x
  2. Step 2: Convert to fraction form
    11,418.20/17,140.10 = 8,832.60/x
  3. Step 3: Cross multiply
    11,418.20x = 17,140.10 × 8,832.60
  4. Step 4: Simplify right side
    11,418.20x = 151,391,647.26
  5. Step 5: Solve for x
    x = 151,391,647.26/11,418.20
  6. Step 6: Final answer
    x = 13,258.80

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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.