Home / 6,386.36-8,813.19-3,553.92

Finding the Fourth Proportional to 6,386.36, 8,813.19 and 3,553.92

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Solution

The fourth proportional to 6,386.36, 8,813.19 and 3,553.92 is: 4,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.36 : 8,813.19 = 3,553.92 : x
  2. Step 2: Convert to fraction form
    6,386.36/8,813.19 = 3,553.92/x
  3. Step 3: Cross multiply
    6,386.36x = 8,813.19 × 3,553.92
  4. Step 4: Simplify right side
    6,386.36x = 31,321,372.20
  5. Step 5: Solve for x
    x = 31,321,372.20/6,386.36
  6. Step 6: Final answer
    x = 4,904.42

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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.