Home / 14,546.80-21,791.40-8,383.60

Finding the Fourth Proportional to 14,546.80, 21,791.40 and 8,383.60

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Solution

The fourth proportional to 14,546.80, 21,791.40 and 8,383.60 is: 12,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,546.80 : 21,791.40 = 8,383.60 : x
  2. Step 2: Convert to fraction form
    14,546.80/21,791.40 = 8,383.60/x
  3. Step 3: Cross multiply
    14,546.80x = 21,791.40 × 8,383.60
  4. Step 4: Simplify right side
    14,546.80x = 182,690,381.04
  5. Step 5: Solve for x
    x = 182,690,381.04/14,546.80
  6. Step 6: Final answer
    x = 12,558.80

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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.