Home / 16,821.96-25,237.32-5,135.28

Finding the Fourth Proportional to 16,821.96, 25,237.32 and 5,135.28

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Solution

The fourth proportional to 16,821.96, 25,237.32 and 5,135.28 is: 7,704.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.96 : 25,237.32 = 5,135.28 : x
  2. Step 2: Convert to fraction form
    16,821.96/25,237.32 = 5,135.28/x
  3. Step 3: Cross multiply
    16,821.96x = 25,237.32 × 5,135.28
  4. Step 4: Simplify right side
    16,821.96x = 129,600,704.65
  5. Step 5: Solve for x
    x = 129,600,704.65/16,821.96
  6. Step 6: Final answer
    x = 7,704.26

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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.