Home / 14,179.46-21,247.11-5,409.59

Finding the Fourth Proportional to 14,179.46, 21,247.11 and 5,409.59

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Solution

The fourth proportional to 14,179.46, 21,247.11 and 5,409.59 is: 8,105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.46 : 21,247.11 = 5,409.59 : x
  2. Step 2: Convert to fraction form
    14,179.46/21,247.11 = 5,409.59/x
  3. Step 3: Cross multiply
    14,179.46x = 21,247.11 × 5,409.59
  4. Step 4: Simplify right side
    14,179.46x = 114,938,047.55
  5. Step 5: Solve for x
    x = 114,938,047.55/14,179.46
  6. Step 6: Final answer
    x = 8,105.96

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1.5x scale

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.