Home / 13,755.34-20,633.89-3,895.40

Finding the Fourth Proportional to 13,755.34, 20,633.89 and 3,895.40

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Solution

The fourth proportional to 13,755.34, 20,633.89 and 3,895.40 is: 5,843.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.34 : 20,633.89 = 3,895.40 : x
  2. Step 2: Convert to fraction form
    13,755.34/20,633.89 = 3,895.40/x
  3. Step 3: Cross multiply
    13,755.34x = 20,633.89 × 3,895.40
  4. Step 4: Simplify right side
    13,755.34x = 80,377,255.11
  5. Step 5: Solve for x
    x = 80,377,255.11/13,755.34
  6. Step 6: Final answer
    x = 5,843.35

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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.