Home / 11,720.44-17,581.74-3,400.12

Finding the Fourth Proportional to 11,720.44, 17,581.74 and 3,400.12

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Solution

The fourth proportional to 11,720.44, 17,581.74 and 3,400.12 is: 5,100.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.44 : 17,581.74 = 3,400.12 : x
  2. Step 2: Convert to fraction form
    11,720.44/17,581.74 = 3,400.12/x
  3. Step 3: Cross multiply
    11,720.44x = 17,581.74 × 3,400.12
  4. Step 4: Simplify right side
    11,720.44x = 59,780,025.81
  5. Step 5: Solve for x
    x = 59,780,025.81/11,720.44
  6. Step 6: Final answer
    x = 5,100.49

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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.