Home / 13,755.31-20,632.97-3,894.68

Finding the Fourth Proportional to 13,755.31, 20,632.97 and 3,894.68

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Solution

The fourth proportional to 13,755.31, 20,632.97 and 3,894.68 is: 5,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.31 : 20,632.97 = 3,894.68 : x
  2. Step 2: Convert to fraction form
    13,755.31/20,632.97 = 3,894.68/x
  3. Step 3: Cross multiply
    13,755.31x = 20,632.97 × 3,894.68
  4. Step 4: Simplify right side
    13,755.31x = 80,358,692.96
  5. Step 5: Solve for x
    x = 80,358,692.96/13,755.31
  6. Step 6: Final answer
    x = 5,842.01

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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.