Home / 8,511.78-12,767.67-2,668.84

Finding the Fourth Proportional to 8,511.78, 12,767.67 and 2,668.84

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Solution

The fourth proportional to 8,511.78, 12,767.67 and 2,668.84 is: 4,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.78 : 12,767.67 = 2,668.84 : x
  2. Step 2: Convert to fraction form
    8,511.78/12,767.67 = 2,668.84/x
  3. Step 3: Cross multiply
    8,511.78x = 12,767.67 × 2,668.84
  4. Step 4: Simplify right side
    8,511.78x = 34,074,868.40
  5. Step 5: Solve for x
    x = 34,074,868.40/8,511.78
  6. Step 6: Final answer
    x = 4,003.26

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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.