Home / 10,989.22-16,486.11-4,415.92

Finding the Fourth Proportional to 10,989.22, 16,486.11 and 4,415.92

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Solution

The fourth proportional to 10,989.22, 16,486.11 and 4,415.92 is: 6,624.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.22 : 16,486.11 = 4,415.92 : x
  2. Step 2: Convert to fraction form
    10,989.22/16,486.11 = 4,415.92/x
  3. Step 3: Cross multiply
    10,989.22x = 16,486.11 × 4,415.92
  4. Step 4: Simplify right side
    10,989.22x = 72,801,289.24
  5. Step 5: Solve for x
    x = 72,801,289.24/10,989.22
  6. Step 6: Final answer
    x = 6,624.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.