Home / 11,406.20-17,122.10-8,820.60

Finding the Fourth Proportional to 11,406.20, 17,122.10 and 8,820.60

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Solution

The fourth proportional to 11,406.20, 17,122.10 and 8,820.60 is: 13,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.20 : 17,122.10 = 8,820.60 : x
  2. Step 2: Convert to fraction form
    11,406.20/17,122.10 = 8,820.60/x
  3. Step 3: Cross multiply
    11,406.20x = 17,122.10 × 8,820.60
  4. Step 4: Simplify right side
    11,406.20x = 151,027,195.26
  5. Step 5: Solve for x
    x = 151,027,195.26/11,406.20
  6. Step 6: Final answer
    x = 13,240.80

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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.