Home / 8,511-12,766.41-3,320.52

Finding the Fourth Proportional to 8,511, 12,766.41 and 3,320.52

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Solution

The fourth proportional to 8,511, 12,766.41 and 3,320.52 is: 4,980.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511 : 12,766.41 = 3,320.52 : x
  2. Step 2: Convert to fraction form
    8,511/12,766.41 = 3,320.52/x
  3. Step 3: Cross multiply
    8,511x = 12,766.41 × 3,320.52
  4. Step 4: Simplify right side
    8,511x = 42,391,119.73
  5. Step 5: Solve for x
    x = 42,391,119.73/8,511
  6. Step 6: Final answer
    x = 4,980.74

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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.