Home / 18,769.23-25,878-12,042.99

Finding the Fourth Proportional to 18,769.23, 25,878 and 12,042.99

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Solution

The fourth proportional to 18,769.23, 25,878 and 12,042.99 is: 16,604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.23 : 25,878 = 12,042.99 : x
  2. Step 2: Convert to fraction form
    18,769.23/25,878 = 12,042.99/x
  3. Step 3: Cross multiply
    18,769.23x = 25,878 × 12,042.99
  4. Step 4: Simplify right side
    18,769.23x = 311,648,495.22
  5. Step 5: Solve for x
    x = 311,648,495.22/18,769.23
  6. Step 6: Final answer
    x = 16,604.22

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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.