Home / 11,227.80-16,843.20-3,830.40

Finding the Fourth Proportional to 11,227.80, 16,843.20 and 3,830.40

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Solution

The fourth proportional to 11,227.80, 16,843.20 and 3,830.40 is: 5,746.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,227.80 : 16,843.20 = 3,830.40 : x
  2. Step 2: Convert to fraction form
    11,227.80/16,843.20 = 3,830.40/x
  3. Step 3: Cross multiply
    11,227.80x = 16,843.20 × 3,830.40
  4. Step 4: Simplify right side
    11,227.80x = 64,516,193.28
  5. Step 5: Solve for x
    x = 64,516,193.28/11,227.80
  6. Step 6: Final answer
    x = 5,746.11

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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.