Home / 17,747.76-26,628.12-7,879.80

Finding the Fourth Proportional to 17,747.76, 26,628.12 and 7,879.80

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Solution

The fourth proportional to 17,747.76, 26,628.12 and 7,879.80 is: 11,822.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,747.76 : 26,628.12 = 7,879.80 : x
  2. Step 2: Convert to fraction form
    17,747.76/26,628.12 = 7,879.80/x
  3. Step 3: Cross multiply
    17,747.76x = 26,628.12 × 7,879.80
  4. Step 4: Simplify right side
    17,747.76x = 209,824,259.98
  5. Step 5: Solve for x
    x = 209,824,259.98/17,747.76
  6. Step 6: Final answer
    x = 11,822.58

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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.