Home / 11,685.22-17,517.40-4,287.96

Finding the Fourth Proportional to 11,685.22, 17,517.40 and 4,287.96

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Solution

The fourth proportional to 11,685.22, 17,517.40 and 4,287.96 is: 6,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.22 : 17,517.40 = 4,287.96 : x
  2. Step 2: Convert to fraction form
    11,685.22/17,517.40 = 4,287.96/x
  3. Step 3: Cross multiply
    11,685.22x = 17,517.40 × 4,287.96
  4. Step 4: Simplify right side
    11,685.22x = 75,113,910.50
  5. Step 5: Solve for x
    x = 75,113,910.50/11,685.22
  6. Step 6: Final answer
    x = 6,428.11

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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.