Home / 13,853.13-20,779.56-3,464.88

Finding the Fourth Proportional to 13,853.13, 20,779.56 and 3,464.88

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Solution

The fourth proportional to 13,853.13, 20,779.56 and 3,464.88 is: 5,197.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.13 : 20,779.56 = 3,464.88 : x
  2. Step 2: Convert to fraction form
    13,853.13/20,779.56 = 3,464.88/x
  3. Step 3: Cross multiply
    13,853.13x = 20,779.56 × 3,464.88
  4. Step 4: Simplify right side
    13,853.13x = 71,998,681.85
  5. Step 5: Solve for x
    x = 71,998,681.85/13,853.13
  6. Step 6: Final answer
    x = 5,197.29

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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.