Home / 16,939.88-25,405.01-10,690.53

Finding the Fourth Proportional to 16,939.88, 25,405.01 and 10,690.53

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Solution

The fourth proportional to 16,939.88, 25,405.01 and 10,690.53 is: 16,032.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.88 : 25,405.01 = 10,690.53 : x
  2. Step 2: Convert to fraction form
    16,939.88/25,405.01 = 10,690.53/x
  3. Step 3: Cross multiply
    16,939.88x = 25,405.01 × 10,690.53
  4. Step 4: Simplify right side
    16,939.88x = 271,593,021.56
  5. Step 5: Solve for x
    x = 271,593,021.56/16,939.88
  6. Step 6: Final answer
    x = 16,032.76

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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.