Home / 13,755.16-20,633.82-3,894.58

Finding the Fourth Proportional to 13,755.16, 20,633.82 and 3,894.58

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Solution

The fourth proportional to 13,755.16, 20,633.82 and 3,894.58 is: 5,842.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.16 : 20,633.82 = 3,894.58 : x
  2. Step 2: Convert to fraction form
    13,755.16/20,633.82 = 3,894.58/x
  3. Step 3: Cross multiply
    13,755.16x = 20,633.82 × 3,894.58
  4. Step 4: Simplify right side
    13,755.16x = 80,360,062.70
  5. Step 5: Solve for x
    x = 80,360,062.70/13,755.16
  6. Step 6: Final answer
    x = 5,842.18

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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.