Home / 6,386.58-8,813.34-3,553.83

Finding the Fourth Proportional to 6,386.58, 8,813.34 and 3,553.83

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Solution

The fourth proportional to 6,386.58, 8,813.34 and 3,553.83 is: 4,904.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.58 : 8,813.34 = 3,553.83 : x
  2. Step 2: Convert to fraction form
    6,386.58/8,813.34 = 3,553.83/x
  3. Step 3: Cross multiply
    6,386.58x = 8,813.34 × 3,553.83
  4. Step 4: Simplify right side
    6,386.58x = 31,321,112.09
  5. Step 5: Solve for x
    x = 31,321,112.09/6,386.58
  6. Step 6: Final answer
    x = 4,904.21

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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.