Home / 12,201.21-16,837.70-6,612.21

Finding the Fourth Proportional to 12,201.21, 16,837.70 and 6,612.21

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Solution

The fourth proportional to 12,201.21, 16,837.70 and 6,612.21 is: 9,124.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.21 : 16,837.70 = 6,612.21 : x
  2. Step 2: Convert to fraction form
    12,201.21/16,837.70 = 6,612.21/x
  3. Step 3: Cross multiply
    12,201.21x = 16,837.70 × 6,612.21
  4. Step 4: Simplify right side
    12,201.21x = 111,334,375.26
  5. Step 5: Solve for x
    x = 111,334,375.26/12,201.21
  6. Step 6: Final answer
    x = 9,124.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.