Home / 11,100.43-16,650.65-8,142.06

Finding the Fourth Proportional to 11,100.43, 16,650.65 and 8,142.06

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Solution

The fourth proportional to 11,100.43, 16,650.65 and 8,142.06 is: 12,213.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.43 : 16,650.65 = 8,142.06 : x
  2. Step 2: Convert to fraction form
    11,100.43/16,650.65 = 8,142.06/x
  3. Step 3: Cross multiply
    11,100.43x = 16,650.65 × 8,142.06
  4. Step 4: Simplify right side
    11,100.43x = 135,570,467.38
  5. Step 5: Solve for x
    x = 135,570,467.38/11,100.43
  6. Step 6: Final answer
    x = 12,213.08

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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.