Home / 13,447.22-20,172.11-3,587.09

Finding the Fourth Proportional to 13,447.22, 20,172.11 and 3,587.09

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Solution

The fourth proportional to 13,447.22, 20,172.11 and 3,587.09 is: 5,380.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.22 : 20,172.11 = 3,587.09 : x
  2. Step 2: Convert to fraction form
    13,447.22/20,172.11 = 3,587.09/x
  3. Step 3: Cross multiply
    13,447.22x = 20,172.11 × 3,587.09
  4. Step 4: Simplify right side
    13,447.22x = 72,359,055.26
  5. Step 5: Solve for x
    x = 72,359,055.26/13,447.22
  6. Step 6: Final answer
    x = 5,380.97

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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.