Home / 12,873.38-19,297.72-4,102.57

Finding the Fourth Proportional to 12,873.38, 19,297.72 and 4,102.57

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Solution

The fourth proportional to 12,873.38, 19,297.72 and 4,102.57 is: 6,149.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873.38 : 19,297.72 = 4,102.57 : x
  2. Step 2: Convert to fraction form
    12,873.38/19,297.72 = 4,102.57/x
  3. Step 3: Cross multiply
    12,873.38x = 19,297.72 × 4,102.57
  4. Step 4: Simplify right side
    12,873.38x = 79,170,130.14
  5. Step 5: Solve for x
    x = 79,170,130.14/12,873.38
  6. Step 6: Final answer
    x = 6,149.91

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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.