Home / 18,770.22-25,906.50-13,407.21

Finding the Fourth Proportional to 18,770.22, 25,906.50 and 13,407.21

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Solution

The fourth proportional to 18,770.22, 25,906.50 and 13,407.21 is: 18,504.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.22 : 25,906.50 = 13,407.21 : x
  2. Step 2: Convert to fraction form
    18,770.22/25,906.50 = 13,407.21/x
  3. Step 3: Cross multiply
    18,770.22x = 25,906.50 × 13,407.21
  4. Step 4: Simplify right side
    18,770.22x = 347,333,885.87
  5. Step 5: Solve for x
    x = 347,333,885.87/18,770.22
  6. Step 6: Final answer
    x = 18,504.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.