Home / 8,539.80-11,785.83-5,005.98

Finding the Fourth Proportional to 8,539.80, 11,785.83 and 5,005.98

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Solution

The fourth proportional to 8,539.80, 11,785.83 and 5,005.98 is: 6,908.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.80 : 11,785.83 = 5,005.98 : x
  2. Step 2: Convert to fraction form
    8,539.80/11,785.83 = 5,005.98/x
  3. Step 3: Cross multiply
    8,539.80x = 11,785.83 × 5,005.98
  4. Step 4: Simplify right side
    8,539.80x = 58,999,629.26
  5. Step 5: Solve for x
    x = 58,999,629.26/8,539.80
  6. Step 6: Final answer
    x = 6,908.78

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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.