Home / 11,238.38-16,858.37-4,312.88

Finding the Fourth Proportional to 11,238.38, 16,858.37 and 4,312.88

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Solution

The fourth proportional to 11,238.38, 16,858.37 and 4,312.88 is: 6,469.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.38 : 16,858.37 = 4,312.88 : x
  2. Step 2: Convert to fraction form
    11,238.38/16,858.37 = 4,312.88/x
  3. Step 3: Cross multiply
    11,238.38x = 16,858.37 × 4,312.88
  4. Step 4: Simplify right side
    11,238.38x = 72,708,053.30
  5. Step 5: Solve for x
    x = 72,708,053.30/11,238.38
  6. Step 6: Final answer
    x = 6,469.62

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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.