Home / 11,918.00-16,448.27-8,139.96

Finding the Fourth Proportional to 11,918.00, 16,448.27 and 8,139.96

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Solution

The fourth proportional to 11,918.00, 16,448.27 and 8,139.96 is: 11,234.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.00 : 16,448.27 = 8,139.96 : x
  2. Step 2: Convert to fraction form
    11,918.00/16,448.27 = 8,139.96/x
  3. Step 3: Cross multiply
    11,918.00x = 16,448.27 × 8,139.96
  4. Step 4: Simplify right side
    11,918.00x = 133,888,219.17
  5. Step 5: Solve for x
    x = 133,888,219.17/11,918.00
  6. Step 6: Final answer
    x = 11,234.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.