Home / 12,784.56-17,644.20-7,195.44

Finding the Fourth Proportional to 12,784.56, 17,644.20 and 7,195.44

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Solution

The fourth proportional to 12,784.56, 17,644.20 and 7,195.44 is: 9,930.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,784.56 : 17,644.20 = 7,195.44 : x
  2. Step 2: Convert to fraction form
    12,784.56/17,644.20 = 7,195.44/x
  3. Step 3: Cross multiply
    12,784.56x = 17,644.20 × 7,195.44
  4. Step 4: Simplify right side
    12,784.56x = 126,957,782.45
  5. Step 5: Solve for x
    x = 126,957,782.45/12,784.56
  6. Step 6: Final answer
    x = 9,930.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.