Home / 11,376.22-17,072.02-3,980.75

Finding the Fourth Proportional to 11,376.22, 17,072.02 and 3,980.75

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Solution

The fourth proportional to 11,376.22, 17,072.02 and 3,980.75 is: 5,973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,376.22 : 17,072.02 = 3,980.75 : x
  2. Step 2: Convert to fraction form
    11,376.22/17,072.02 = 3,980.75/x
  3. Step 3: Cross multiply
    11,376.22x = 17,072.02 × 3,980.75
  4. Step 4: Simplify right side
    11,376.22x = 67,959,352.03
  5. Step 5: Solve for x
    x = 67,959,352.03/11,376.22
  6. Step 6: Final answer
    x = 5,973.81

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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.