Home / 11,209.10-16,809.60-4,542.80

Finding the Fourth Proportional to 11,209.10, 16,809.60 and 4,542.80

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Solution

The fourth proportional to 11,209.10, 16,809.60 and 4,542.80 is: 6,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.10 : 16,809.60 = 4,542.80 : x
  2. Step 2: Convert to fraction form
    11,209.10/16,809.60 = 4,542.80/x
  3. Step 3: Cross multiply
    11,209.10x = 16,809.60 × 4,542.80
  4. Step 4: Simplify right side
    11,209.10x = 76,362,650.88
  5. Step 5: Solve for x
    x = 76,362,650.88/11,209.10
  6. Step 6: Final answer
    x = 6,812.56

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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.