Home / 8,520.36-12,784.32-3,324.48

Finding the Fourth Proportional to 8,520.36, 12,784.32 and 3,324.48

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Solution

The fourth proportional to 8,520.36, 12,784.32 and 3,324.48 is: 4,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.36 : 12,784.32 = 3,324.48 : x
  2. Step 2: Convert to fraction form
    8,520.36/12,784.32 = 3,324.48/x
  3. Step 3: Cross multiply
    8,520.36x = 12,784.32 × 3,324.48
  4. Step 4: Simplify right side
    8,520.36x = 42,501,216.15
  5. Step 5: Solve for x
    x = 42,501,216.15/8,520.36
  6. Step 6: Final answer
    x = 4,988.19

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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.