Home / 12,387.30-18,580.96-3,622.22

Finding the Fourth Proportional to 12,387.30, 18,580.96 and 3,622.22

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Solution

The fourth proportional to 12,387.30, 18,580.96 and 3,622.22 is: 5,433.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.30 : 18,580.96 = 3,622.22 : x
  2. Step 2: Convert to fraction form
    12,387.30/18,580.96 = 3,622.22/x
  3. Step 3: Cross multiply
    12,387.30x = 18,580.96 × 3,622.22
  4. Step 4: Simplify right side
    12,387.30x = 67,304,290.95
  5. Step 5: Solve for x
    x = 67,304,290.95/12,387.30
  6. Step 6: Final answer
    x = 5,433.33

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Double scale
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Similar ratio
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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.