Home / 12,083.92-18,122.20-4,292.28

Finding the Fourth Proportional to 12,083.92, 18,122.20 and 4,292.28

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Solution

The fourth proportional to 12,083.92, 18,122.20 and 4,292.28 is: 6,437.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.92 : 18,122.20 = 4,292.28 : x
  2. Step 2: Convert to fraction form
    12,083.92/18,122.20 = 4,292.28/x
  3. Step 3: Cross multiply
    12,083.92x = 18,122.20 × 4,292.28
  4. Step 4: Simplify right side
    12,083.92x = 77,785,556.62
  5. Step 5: Solve for x
    x = 77,785,556.62/12,083.92
  6. Step 6: Final answer
    x = 6,437.11

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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.