Home / 11,754.28-16,221.21-6,649.38

Finding the Fourth Proportional to 11,754.28, 16,221.21 and 6,649.38

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Solution

The fourth proportional to 11,754.28, 16,221.21 and 6,649.38 is: 9,176.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,754.28 : 16,221.21 = 6,649.38 : x
  2. Step 2: Convert to fraction form
    11,754.28/16,221.21 = 6,649.38/x
  3. Step 3: Cross multiply
    11,754.28x = 16,221.21 × 6,649.38
  4. Step 4: Simplify right side
    11,754.28x = 107,860,989.35
  5. Step 5: Solve for x
    x = 107,860,989.35/11,754.28
  6. Step 6: Final answer
    x = 9,176.32

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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.