Home / 11,657.10-16,086.81-6,351.80

Finding the Fourth Proportional to 11,657.10, 16,086.81 and 6,351.80

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Solution

The fourth proportional to 11,657.10, 16,086.81 and 6,351.80 is: 8,765.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,657.10 : 16,086.81 = 6,351.80 : x
  2. Step 2: Convert to fraction form
    11,657.10/16,086.81 = 6,351.80/x
  3. Step 3: Cross multiply
    11,657.10x = 16,086.81 × 6,351.80
  4. Step 4: Simplify right side
    11,657.10x = 102,180,119.32
  5. Step 5: Solve for x
    x = 102,180,119.32/11,657.10
  6. Step 6: Final answer
    x = 8,765.48

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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.