Home / 8,511.73-12,772.59-3,580.99

Finding the Fourth Proportional to 8,511.73, 12,772.59 and 3,580.99

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Solution

The fourth proportional to 8,511.73, 12,772.59 and 3,580.99 is: 5,373.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.73 : 12,772.59 = 3,580.99 : x
  2. Step 2: Convert to fraction form
    8,511.73/12,772.59 = 3,580.99/x
  3. Step 3: Cross multiply
    8,511.73x = 12,772.59 × 3,580.99
  4. Step 4: Simplify right side
    8,511.73x = 45,738,517.06
  5. Step 5: Solve for x
    x = 45,738,517.06/8,511.73
  6. Step 6: Final answer
    x = 5,373.59

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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.