Home / 13,953.42-20,933.06-4,091.90

Finding the Fourth Proportional to 13,953.42, 20,933.06 and 4,091.90

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Solution

The fourth proportional to 13,953.42, 20,933.06 and 4,091.90 is: 6,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.42 : 20,933.06 = 4,091.90 : x
  2. Step 2: Convert to fraction form
    13,953.42/20,933.06 = 4,091.90/x
  3. Step 3: Cross multiply
    13,953.42x = 20,933.06 × 4,091.90
  4. Step 4: Simplify right side
    13,953.42x = 85,655,863.09
  5. Step 5: Solve for x
    x = 85,655,863.09/13,953.42
  6. Step 6: Final answer
    x = 6,138.70

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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.