Home / 11,666.48-16,099.70-6,361.28

Finding the Fourth Proportional to 11,666.48, 16,099.70 and 6,361.28

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Solution

The fourth proportional to 11,666.48, 16,099.70 and 6,361.28 is: 8,778.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,666.48 : 16,099.70 = 6,361.28 : x
  2. Step 2: Convert to fraction form
    11,666.48/16,099.70 = 6,361.28/x
  3. Step 3: Cross multiply
    11,666.48x = 16,099.70 × 6,361.28
  4. Step 4: Simplify right side
    11,666.48x = 102,414,755.77
  5. Step 5: Solve for x
    x = 102,414,755.77/11,666.48
  6. Step 6: Final answer
    x = 8,778.55

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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.