Home / 8,111.28-12,166.84-2,564.62

Finding the Fourth Proportional to 8,111.28, 12,166.84 and 2,564.62

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Solution

The fourth proportional to 8,111.28, 12,166.84 and 2,564.62 is: 3,846.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.28 : 12,166.84 = 2,564.62 : x
  2. Step 2: Convert to fraction form
    8,111.28/12,166.84 = 2,564.62/x
  3. Step 3: Cross multiply
    8,111.28x = 12,166.84 × 2,564.62
  4. Step 4: Simplify right side
    8,111.28x = 31,203,354.88
  5. Step 5: Solve for x
    x = 31,203,354.88/8,111.28
  6. Step 6: Final answer
    x = 3,846.91

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Similar ratio
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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.