Home / 8,109.90-11,192.31-4,573.44

Finding the Fourth Proportional to 8,109.90, 11,192.31 and 4,573.44

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Solution

The fourth proportional to 8,109.90, 11,192.31 and 4,573.44 is: 6,311.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.90 : 11,192.31 = 4,573.44 : x
  2. Step 2: Convert to fraction form
    8,109.90/11,192.31 = 4,573.44/x
  3. Step 3: Cross multiply
    8,109.90x = 11,192.31 × 4,573.44
  4. Step 4: Simplify right side
    8,109.90x = 51,187,358.25
  5. Step 5: Solve for x
    x = 51,187,358.25/8,109.90
  6. Step 6: Final answer
    x = 6,311.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.