Home / 13,862.30-20,790.39-3,999.44

Finding the Fourth Proportional to 13,862.30, 20,790.39 and 3,999.44

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Solution

The fourth proportional to 13,862.30, 20,790.39 and 3,999.44 is: 5,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.30 : 20,790.39 = 3,999.44 : x
  2. Step 2: Convert to fraction form
    13,862.30/20,790.39 = 3,999.44/x
  3. Step 3: Cross multiply
    13,862.30x = 20,790.39 × 3,999.44
  4. Step 4: Simplify right side
    13,862.30x = 83,149,917.38
  5. Step 5: Solve for x
    x = 83,149,917.38/13,862.30
  6. Step 6: Final answer
    x = 5,998.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.