Home / 14,520.80-21,778.58-3,847.23

Finding the Fourth Proportional to 14,520.80, 21,778.58 and 3,847.23

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Solution

The fourth proportional to 14,520.80, 21,778.58 and 3,847.23 is: 5,770.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.80 : 21,778.58 = 3,847.23 : x
  2. Step 2: Convert to fraction form
    14,520.80/21,778.58 = 3,847.23/x
  3. Step 3: Cross multiply
    14,520.80x = 21,778.58 × 3,847.23
  4. Step 4: Simplify right side
    14,520.80x = 83,787,215.95
  5. Step 5: Solve for x
    x = 83,787,215.95/14,520.80
  6. Step 6: Final answer
    x = 5,770.15

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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.