Home / 16,983.80-25,467.50-7,120.43

Finding the Fourth Proportional to 16,983.80, 25,467.50 and 7,120.43

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Solution

The fourth proportional to 16,983.80, 25,467.50 and 7,120.43 is: 10,677.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,983.80 : 25,467.50 = 7,120.43 : x
  2. Step 2: Convert to fraction form
    16,983.80/25,467.50 = 7,120.43/x
  3. Step 3: Cross multiply
    16,983.80x = 25,467.50 × 7,120.43
  4. Step 4: Simplify right side
    16,983.80x = 181,339,551.03
  5. Step 5: Solve for x
    x = 181,339,551.03/16,983.80
  6. Step 6: Final answer
    x = 10,677.21

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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.