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Finding the Fourth Proportional to 12,220.55, 18,327.15 and 6,373.97

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Solution

The fourth proportional to 12,220.55, 18,327.15 and 6,373.97 is: 9,559.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.55 : 18,327.15 = 6,373.97 : x
  2. Step 2: Convert to fraction form
    12,220.55/18,327.15 = 6,373.97/x
  3. Step 3: Cross multiply
    12,220.55x = 18,327.15 × 6,373.97
  4. Step 4: Simplify right side
    12,220.55x = 116,816,612.65
  5. Step 5: Solve for x
    x = 116,816,612.65/12,220.55
  6. Step 6: Final answer
    x = 9,559.03

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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.