Home / 13,904.08-20,855.40-3,515.92

Finding the Fourth Proportional to 13,904.08, 20,855.40 and 3,515.92

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Solution

The fourth proportional to 13,904.08, 20,855.40 and 3,515.92 is: 5,273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.08 : 20,855.40 = 3,515.92 : x
  2. Step 2: Convert to fraction form
    13,904.08/20,855.40 = 3,515.92/x
  3. Step 3: Cross multiply
    13,904.08x = 20,855.40 × 3,515.92
  4. Step 4: Simplify right side
    13,904.08x = 73,325,917.97
  5. Step 5: Solve for x
    x = 73,325,917.97/13,904.08
  6. Step 6: Final answer
    x = 5,273.70

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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.