Home / 16,990.75-25,502.33-7,127.38

Finding the Fourth Proportional to 16,990.75, 25,502.33 and 7,127.38

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Solution

The fourth proportional to 16,990.75, 25,502.33 and 7,127.38 is: 10,697.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.75 : 25,502.33 = 7,127.38 : x
  2. Step 2: Convert to fraction form
    16,990.75/25,502.33 = 7,127.38/x
  3. Step 3: Cross multiply
    16,990.75x = 25,502.33 × 7,127.38
  4. Step 4: Simplify right side
    16,990.75x = 181,764,796.80
  5. Step 5: Solve for x
    x = 181,764,796.80/16,990.75
  6. Step 6: Final answer
    x = 10,697.87

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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.