Home / 13,572.33-20,450.96-11,161.16

Finding the Fourth Proportional to 13,572.33, 20,450.96 and 11,161.16

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Solution

The fourth proportional to 13,572.33, 20,450.96 and 11,161.16 is: 16,817.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.33 : 20,450.96 = 11,161.16 : x
  2. Step 2: Convert to fraction form
    13,572.33/20,450.96 = 11,161.16/x
  3. Step 3: Cross multiply
    13,572.33x = 20,450.96 × 11,161.16
  4. Step 4: Simplify right side
    13,572.33x = 228,256,432.04
  5. Step 5: Solve for x
    x = 228,256,432.04/13,572.33
  6. Step 6: Final answer
    x = 16,817.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.