Home / 11,666.55-16,099.91-6,361.45

Finding the Fourth Proportional to 11,666.55, 16,099.91 and 6,361.45

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Solution

The fourth proportional to 11,666.55, 16,099.91 and 6,361.45 is: 8,778.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,666.55 : 16,099.91 = 6,361.45 : x
  2. Step 2: Convert to fraction form
    11,666.55/16,099.91 = 6,361.45/x
  3. Step 3: Cross multiply
    11,666.55x = 16,099.91 × 6,361.45
  4. Step 4: Simplify right side
    11,666.55x = 102,418,740.66
  5. Step 5: Solve for x
    x = 102,418,740.66/11,666.55
  6. Step 6: Final answer
    x = 8,778.84

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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.