Home / 12,607.24-18,908.10-3,839.80

Finding the Fourth Proportional to 12,607.24, 18,908.10 and 3,839.80

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Solution

The fourth proportional to 12,607.24, 18,908.10 and 3,839.80 is: 5,758.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.24 : 18,908.10 = 3,839.80 : x
  2. Step 2: Convert to fraction form
    12,607.24/18,908.10 = 3,839.80/x
  3. Step 3: Cross multiply
    12,607.24x = 18,908.10 × 3,839.80
  4. Step 4: Simplify right side
    12,607.24x = 72,603,322.38
  5. Step 5: Solve for x
    x = 72,603,322.38/12,607.24
  6. Step 6: Final answer
    x = 5,758.86

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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.