Home / 8,249.09-11,378.58-5,416.61

Finding the Fourth Proportional to 8,249.09, 11,378.58 and 5,416.61

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Solution

The fourth proportional to 8,249.09, 11,378.58 and 5,416.61 is: 7,471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,249.09 : 11,378.58 = 5,416.61 : x
  2. Step 2: Convert to fraction form
    8,249.09/11,378.58 = 5,416.61/x
  3. Step 3: Cross multiply
    8,249.09x = 11,378.58 × 5,416.61
  4. Step 4: Simplify right side
    8,249.09x = 61,633,330.21
  5. Step 5: Solve for x
    x = 61,633,330.21/8,249.09
  6. Step 6: Final answer
    x = 7,471.53

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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.