Home / 12,083.92-18,127.38-4,292.80

Finding the Fourth Proportional to 12,083.92, 18,127.38 and 4,292.80

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Solution

The fourth proportional to 12,083.92, 18,127.38 and 4,292.80 is: 6,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.92 : 18,127.38 = 4,292.80 : x
  2. Step 2: Convert to fraction form
    12,083.92/18,127.38 = 4,292.80/x
  3. Step 3: Cross multiply
    12,083.92x = 18,127.38 × 4,292.80
  4. Step 4: Simplify right side
    12,083.92x = 77,817,216.86
  5. Step 5: Solve for x
    x = 77,817,216.86/12,083.92
  6. Step 6: Final answer
    x = 6,439.73

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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.