Home / 7,186.48-9,917.27-3,999.73

Finding the Fourth Proportional to 7,186.48, 9,917.27 and 3,999.73

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Solution

The fourth proportional to 7,186.48, 9,917.27 and 3,999.73 is: 5,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186.48 : 9,917.27 = 3,999.73 : x
  2. Step 2: Convert to fraction form
    7,186.48/9,917.27 = 3,999.73/x
  3. Step 3: Cross multiply
    7,186.48x = 9,917.27 × 3,999.73
  4. Step 4: Simplify right side
    7,186.48x = 39,666,340.86
  5. Step 5: Solve for x
    x = 39,666,340.86/7,186.48
  6. Step 6: Final answer
    x = 5,519.58

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1.5x scale

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.