Home / 13,853.26-20,779.89-10,739.62

Finding the Fourth Proportional to 13,853.26, 20,779.89 and 10,739.62

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Solution

The fourth proportional to 13,853.26, 20,779.89 and 10,739.62 is: 16,109.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.26 : 20,779.89 = 10,739.62 : x
  2. Step 2: Convert to fraction form
    13,853.26/20,779.89 = 10,739.62/x
  3. Step 3: Cross multiply
    13,853.26x = 20,779.89 × 10,739.62
  4. Step 4: Simplify right side
    13,853.26x = 223,168,122.24
  5. Step 5: Solve for x
    x = 223,168,122.24/13,853.26
  6. Step 6: Final answer
    x = 16,109.43

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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.