Home / 12,837.21-19,247.67-4,939.71

Finding the Fourth Proportional to 12,837.21, 19,247.67 and 4,939.71

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Solution

The fourth proportional to 12,837.21, 19,247.67 and 4,939.71 is: 7,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.21 : 19,247.67 = 4,939.71 : x
  2. Step 2: Convert to fraction form
    12,837.21/19,247.67 = 4,939.71/x
  3. Step 3: Cross multiply
    12,837.21x = 19,247.67 × 4,939.71
  4. Step 4: Simplify right side
    12,837.21x = 95,077,907.98
  5. Step 5: Solve for x
    x = 95,077,907.98/12,837.21
  6. Step 6: Final answer
    x = 7,406.43

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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.