Home / 11,657.22-16,086.32-6,621.30

Finding the Fourth Proportional to 11,657.22, 16,086.32 and 6,621.30

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Solution

The fourth proportional to 11,657.22, 16,086.32 and 6,621.30 is: 9,137.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,657.22 : 16,086.32 = 6,621.30 : x
  2. Step 2: Convert to fraction form
    11,657.22/16,086.32 = 6,621.30/x
  3. Step 3: Cross multiply
    11,657.22x = 16,086.32 × 6,621.30
  4. Step 4: Simplify right side
    11,657.22x = 106,512,350.62
  5. Step 5: Solve for x
    x = 106,512,350.62/11,657.22
  6. Step 6: Final answer
    x = 9,137.03

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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.