Home / 8,549.50-12,828.20-3,620.28

Finding the Fourth Proportional to 8,549.50, 12,828.20 and 3,620.28

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Solution

The fourth proportional to 8,549.50, 12,828.20 and 3,620.28 is: 5,432.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,549.50 : 12,828.20 = 3,620.28 : x
  2. Step 2: Convert to fraction form
    8,549.50/12,828.20 = 3,620.28/x
  3. Step 3: Cross multiply
    8,549.50x = 12,828.20 × 3,620.28
  4. Step 4: Simplify right side
    8,549.50x = 46,441,675.90
  5. Step 5: Solve for x
    x = 46,441,675.90/8,549.50
  6. Step 6: Final answer
    x = 5,432.09

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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.