Home / 8,305.13-11,458.21-5,322.61

Finding the Fourth Proportional to 8,305.13, 11,458.21 and 5,322.61

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Solution

The fourth proportional to 8,305.13, 11,458.21 and 5,322.61 is: 7,343.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.13 : 11,458.21 = 5,322.61 : x
  2. Step 2: Convert to fraction form
    8,305.13/11,458.21 = 5,322.61/x
  3. Step 3: Cross multiply
    8,305.13x = 11,458.21 × 5,322.61
  4. Step 4: Simplify right side
    8,305.13x = 60,987,584.14
  5. Step 5: Solve for x
    x = 60,987,584.14/8,305.13
  6. Step 6: Final answer
    x = 7,343.36

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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.