Home / 8,529.12-12,789.84-3,333.60

Finding the Fourth Proportional to 8,529.12, 12,789.84 and 3,333.60

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Solution

The fourth proportional to 8,529.12, 12,789.84 and 3,333.60 is: 4,998.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529.12 : 12,789.84 = 3,333.60 : x
  2. Step 2: Convert to fraction form
    8,529.12/12,789.84 = 3,333.60/x
  3. Step 3: Cross multiply
    8,529.12x = 12,789.84 × 3,333.60
  4. Step 4: Simplify right side
    8,529.12x = 42,636,210.62
  5. Step 5: Solve for x
    x = 42,636,210.62/8,529.12
  6. Step 6: Final answer
    x = 4,998.90

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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.