Home / 16,808.55-25,212.73-5,121.87

Finding the Fourth Proportional to 16,808.55, 25,212.73 and 5,121.87

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Solution

The fourth proportional to 16,808.55, 25,212.73 and 5,121.87 is: 7,682.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,808.55 : 25,212.73 = 5,121.87 : x
  2. Step 2: Convert to fraction form
    16,808.55/25,212.73 = 5,121.87/x
  3. Step 3: Cross multiply
    16,808.55x = 25,212.73 × 5,121.87
  4. Step 4: Simplify right side
    16,808.55x = 129,136,325.41
  5. Step 5: Solve for x
    x = 129,136,325.41/16,808.55
  6. Step 6: Final answer
    x = 7,682.78

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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.