Home / 14,649.45-20,214.94-8,680.11

Finding the Fourth Proportional to 14,649.45, 20,214.94 and 8,680.11

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Solution

The fourth proportional to 14,649.45, 20,214.94 and 8,680.11 is: 11,977.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.45 : 20,214.94 = 8,680.11 : x
  2. Step 2: Convert to fraction form
    14,649.45/20,214.94 = 8,680.11/x
  3. Step 3: Cross multiply
    14,649.45x = 20,214.94 × 8,680.11
  4. Step 4: Simplify right side
    14,649.45x = 175,467,902.84
  5. Step 5: Solve for x
    x = 175,467,902.84/14,649.45
  6. Step 6: Final answer
    x = 11,977.78

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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.