Home / 13,817.32-20,727.50-3,958.20

Finding the Fourth Proportional to 13,817.32, 20,727.50 and 3,958.20

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Solution

The fourth proportional to 13,817.32, 20,727.50 and 3,958.20 is: 5,937.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.32 : 20,727.50 = 3,958.20 : x
  2. Step 2: Convert to fraction form
    13,817.32/20,727.50 = 3,958.20/x
  3. Step 3: Cross multiply
    13,817.32x = 20,727.50 × 3,958.20
  4. Step 4: Simplify right side
    13,817.32x = 82,043,570.71
  5. Step 5: Solve for x
    x = 82,043,570.71/13,817.32
  6. Step 6: Final answer
    x = 5,937.74

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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.