Home / 14,520.45-21,783.72-5,755.44

Finding the Fourth Proportional to 14,520.45, 21,783.72 and 5,755.44

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Solution

The fourth proportional to 14,520.45, 21,783.72 and 5,755.44 is: 8,634.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.45 : 21,783.72 = 5,755.44 : x
  2. Step 2: Convert to fraction form
    14,520.45/21,783.72 = 5,755.44/x
  3. Step 3: Cross multiply
    14,520.45x = 21,783.72 × 5,755.44
  4. Step 4: Simplify right side
    14,520.45x = 125,374,893.44
  5. Step 5: Solve for x
    x = 125,374,893.44/14,520.45
  6. Step 6: Final answer
    x = 8,634.37

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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.