Home / 18,645.82-25,743.62-14,389.34

Finding the Fourth Proportional to 18,645.82, 25,743.62 and 14,389.34

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Solution

The fourth proportional to 18,645.82, 25,743.62 and 14,389.34 is: 19,866.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.82 : 25,743.62 = 14,389.34 : x
  2. Step 2: Convert to fraction form
    18,645.82/25,743.62 = 14,389.34/x
  3. Step 3: Cross multiply
    18,645.82x = 25,743.62 × 14,389.34
  4. Step 4: Simplify right side
    18,645.82x = 370,433,608.27
  5. Step 5: Solve for x
    x = 370,433,608.27/18,645.82
  6. Step 6: Final answer
    x = 19,866.85

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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.