Home / 11,887.82-17,835.46-7,149.44

Finding the Fourth Proportional to 11,887.82, 17,835.46 and 7,149.44

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Solution

The fourth proportional to 11,887.82, 17,835.46 and 7,149.44 is: 10,726.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,887.82 : 17,835.46 = 7,149.44 : x
  2. Step 2: Convert to fraction form
    11,887.82/17,835.46 = 7,149.44/x
  3. Step 3: Cross multiply
    11,887.82x = 17,835.46 × 7,149.44
  4. Step 4: Simplify right side
    11,887.82x = 127,513,461.97
  5. Step 5: Solve for x
    x = 127,513,461.97/11,887.82
  6. Step 6: Final answer
    x = 10,726.40

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1.5x scale

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.