Home / 12,741.09-19,104.62-8,743.07

Finding the Fourth Proportional to 12,741.09, 19,104.62 and 8,743.07

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Solution

The fourth proportional to 12,741.09, 19,104.62 and 8,743.07 is: 13,109.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.09 : 19,104.62 = 8,743.07 : x
  2. Step 2: Convert to fraction form
    12,741.09/19,104.62 = 8,743.07/x
  3. Step 3: Cross multiply
    12,741.09x = 19,104.62 × 8,743.07
  4. Step 4: Simplify right side
    12,741.09x = 167,032,890.74
  5. Step 5: Solve for x
    x = 167,032,890.74/12,741.09
  6. Step 6: Final answer
    x = 13,109.78

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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.