Home / 8,236.05-11,360.64-5,403.61

Finding the Fourth Proportional to 8,236.05, 11,360.64 and 5,403.61

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Solution

The fourth proportional to 8,236.05, 11,360.64 and 5,403.61 is: 7,453.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.05 : 11,360.64 = 5,403.61 : x
  2. Step 2: Convert to fraction form
    8,236.05/11,360.64 = 5,403.61/x
  3. Step 3: Cross multiply
    8,236.05x = 11,360.64 × 5,403.61
  4. Step 4: Simplify right side
    8,236.05x = 61,388,467.91
  5. Step 5: Solve for x
    x = 61,388,467.91/8,236.05
  6. Step 6: Final answer
    x = 7,453.63

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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.