Home / 8,512.31-12,768.45-2,668.91

Finding the Fourth Proportional to 8,512.31, 12,768.45 and 2,668.91

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Solution

The fourth proportional to 8,512.31, 12,768.45 and 2,668.91 is: 4,003.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.31 : 12,768.45 = 2,668.91 : x
  2. Step 2: Convert to fraction form
    8,512.31/12,768.45 = 2,668.91/x
  3. Step 3: Cross multiply
    8,512.31x = 12,768.45 × 2,668.91
  4. Step 4: Simplify right side
    8,512.31x = 34,077,843.89
  5. Step 5: Solve for x
    x = 34,077,843.89/8,512.31
  6. Step 6: Final answer
    x = 4,003.36

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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.