Home / 12,768.36-19,142.20-5,743.23

Finding the Fourth Proportional to 12,768.36, 19,142.20 and 5,743.23

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Solution

The fourth proportional to 12,768.36, 19,142.20 and 5,743.23 is: 8,610.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.36 : 19,142.20 = 5,743.23 : x
  2. Step 2: Convert to fraction form
    12,768.36/19,142.20 = 5,743.23/x
  3. Step 3: Cross multiply
    12,768.36x = 19,142.20 × 5,743.23
  4. Step 4: Simplify right side
    12,768.36x = 109,938,057.31
  5. Step 5: Solve for x
    x = 109,938,057.31/12,768.36
  6. Step 6: Final answer
    x = 8,610.19

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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.