Home / 13,755.36-20,641.44-5,433.96

Finding the Fourth Proportional to 13,755.36, 20,641.44 and 5,433.96

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Solution

The fourth proportional to 13,755.36, 20,641.44 and 5,433.96 is: 8,154.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.36 : 20,641.44 = 5,433.96 : x
  2. Step 2: Convert to fraction form
    13,755.36/20,641.44 = 5,433.96/x
  3. Step 3: Cross multiply
    13,755.36x = 20,641.44 × 5,433.96
  4. Step 4: Simplify right side
    13,755.36x = 112,164,759.30
  5. Step 5: Solve for x
    x = 112,164,759.30/13,755.36
  6. Step 6: Final answer
    x = 8,154.26

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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.