Home / 12,461.43-18,688.96-3,694.31

Finding the Fourth Proportional to 12,461.43, 18,688.96 and 3,694.31

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Solution

The fourth proportional to 12,461.43, 18,688.96 and 3,694.31 is: 5,540.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461.43 : 18,688.96 = 3,694.31 : x
  2. Step 2: Convert to fraction form
    12,461.43/18,688.96 = 3,694.31/x
  3. Step 3: Cross multiply
    12,461.43x = 18,688.96 × 3,694.31
  4. Step 4: Simplify right side
    12,461.43x = 69,042,699.90
  5. Step 5: Solve for x
    x = 69,042,699.90/12,461.43
  6. Step 6: Final answer
    x = 5,540.51

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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.