Home / 8,328.16-12,481.40-3,392.02

Finding the Fourth Proportional to 8,328.16, 12,481.40 and 3,392.02

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Solution

The fourth proportional to 8,328.16, 12,481.40 and 3,392.02 is: 5,083.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.16 : 12,481.40 = 3,392.02 : x
  2. Step 2: Convert to fraction form
    8,328.16/12,481.40 = 3,392.02/x
  3. Step 3: Cross multiply
    8,328.16x = 12,481.40 × 3,392.02
  4. Step 4: Simplify right side
    8,328.16x = 42,337,158.43
  5. Step 5: Solve for x
    x = 42,337,158.43/8,328.16
  6. Step 6: Final answer
    x = 5,083.61

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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.