Home / 8,218.60-12,328.58-2,669.75

Finding the Fourth Proportional to 8,218.60, 12,328.58 and 2,669.75

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Solution

The fourth proportional to 8,218.60, 12,328.58 and 2,669.75 is: 4,004.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.60 : 12,328.58 = 2,669.75 : x
  2. Step 2: Convert to fraction form
    8,218.60/12,328.58 = 2,669.75/x
  3. Step 3: Cross multiply
    8,218.60x = 12,328.58 × 2,669.75
  4. Step 4: Simplify right side
    8,218.60x = 32,914,226.46
  5. Step 5: Solve for x
    x = 32,914,226.46/8,218.60
  6. Step 6: Final answer
    x = 4,004.85

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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.