Home / 8,379.36-12,570.62-3,997.13

Finding the Fourth Proportional to 8,379.36, 12,570.62 and 3,997.13

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Solution

The fourth proportional to 8,379.36, 12,570.62 and 3,997.13 is: 5,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.36 : 12,570.62 = 3,997.13 : x
  2. Step 2: Convert to fraction form
    8,379.36/12,570.62 = 3,997.13/x
  3. Step 3: Cross multiply
    8,379.36x = 12,570.62 × 3,997.13
  4. Step 4: Simplify right side
    8,379.36x = 50,246,319.48
  5. Step 5: Solve for x
    x = 50,246,319.48/8,379.36
  6. Step 6: Final answer
    x = 5,996.44

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1.5x scale

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.