Home / 13,858.54-20,785.30-3,995.39

Finding the Fourth Proportional to 13,858.54, 20,785.30 and 3,995.39

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Solution

The fourth proportional to 13,858.54, 20,785.30 and 3,995.39 is: 5,992.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.54 : 20,785.30 = 3,995.39 : x
  2. Step 2: Convert to fraction form
    13,858.54/20,785.30 = 3,995.39/x
  3. Step 3: Cross multiply
    13,858.54x = 20,785.30 × 3,995.39
  4. Step 4: Simplify right side
    13,858.54x = 83,045,379.77
  5. Step 5: Solve for x
    x = 83,045,379.77/13,858.54
  6. Step 6: Final answer
    x = 5,992.36

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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.