Home / 12,781.23-19,144.11-6,193.59

Finding the Fourth Proportional to 12,781.23, 19,144.11 and 6,193.59

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Solution

The fourth proportional to 12,781.23, 19,144.11 and 6,193.59 is: 9,276.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.23 : 19,144.11 = 6,193.59 : x
  2. Step 2: Convert to fraction form
    12,781.23/19,144.11 = 6,193.59/x
  3. Step 3: Cross multiply
    12,781.23x = 19,144.11 × 6,193.59
  4. Step 4: Simplify right side
    12,781.23x = 118,570,768.25
  5. Step 5: Solve for x
    x = 118,570,768.25/12,781.23
  6. Step 6: Final answer
    x = 9,276.95

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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.