Home / 8,109.30-11,190.16-4,573.38

Finding the Fourth Proportional to 8,109.30, 11,190.16 and 4,573.38

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Solution

The fourth proportional to 8,109.30, 11,190.16 and 4,573.38 is: 6,310.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.30 : 11,190.16 = 4,573.38 : x
  2. Step 2: Convert to fraction form
    8,109.30/11,190.16 = 4,573.38/x
  3. Step 3: Cross multiply
    8,109.30x = 11,190.16 × 4,573.38
  4. Step 4: Simplify right side
    8,109.30x = 51,176,853.94
  5. Step 5: Solve for x
    x = 51,176,853.94/8,109.30
  6. Step 6: Final answer
    x = 6,310.88

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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.