Home / 11,380.13-17,066.85-3,983.21

Finding the Fourth Proportional to 11,380.13, 17,066.85 and 3,983.21

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Solution

The fourth proportional to 11,380.13, 17,066.85 and 3,983.21 is: 5,973.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,380.13 : 17,066.85 = 3,983.21 : x
  2. Step 2: Convert to fraction form
    11,380.13/17,066.85 = 3,983.21/x
  3. Step 3: Cross multiply
    11,380.13x = 17,066.85 × 3,983.21
  4. Step 4: Simplify right side
    11,380.13x = 67,980,847.59
  5. Step 5: Solve for x
    x = 67,980,847.59/11,380.13
  6. Step 6: Final answer
    x = 5,973.64

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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.