Home / 8,235.23-12,353.68-2,688.99

Finding the Fourth Proportional to 8,235.23, 12,353.68 and 2,688.99

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Solution

The fourth proportional to 8,235.23, 12,353.68 and 2,688.99 is: 4,033.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.23 : 12,353.68 = 2,688.99 : x
  2. Step 2: Convert to fraction form
    8,235.23/12,353.68 = 2,688.99/x
  3. Step 3: Cross multiply
    8,235.23x = 12,353.68 × 2,688.99
  4. Step 4: Simplify right side
    8,235.23x = 33,218,879.02
  5. Step 5: Solve for x
    x = 33,218,879.02/8,235.23
  6. Step 6: Final answer
    x = 4,033.75

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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.