Home / 7,511.96-11,272.92-3,129.44

Finding the Fourth Proportional to 7,511.96, 11,272.92 and 3,129.44

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Solution

The fourth proportional to 7,511.96, 11,272.92 and 3,129.44 is: 4,696.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,511.96 : 11,272.92 = 3,129.44 : x
  2. Step 2: Convert to fraction form
    7,511.96/11,272.92 = 3,129.44/x
  3. Step 3: Cross multiply
    7,511.96x = 11,272.92 × 3,129.44
  4. Step 4: Simplify right side
    7,511.96x = 35,277,926.76
  5. Step 5: Solve for x
    x = 35,277,926.76/7,511.96
  6. Step 6: Final answer
    x = 4,696.23

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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.