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Finding the Fourth Proportional to 12,257.19, 18,385.79 and 3,023.19

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Solution

The fourth proportional to 12,257.19, 18,385.79 and 3,023.19 is: 4,534.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.19 : 18,385.79 = 3,023.19 : x
  2. Step 2: Convert to fraction form
    12,257.19/18,385.79 = 3,023.19/x
  3. Step 3: Cross multiply
    12,257.19x = 18,385.79 × 3,023.19
  4. Step 4: Simplify right side
    12,257.19x = 55,583,721.35
  5. Step 5: Solve for x
    x = 55,583,721.35/12,257.19
  6. Step 6: Final answer
    x = 4,534.79

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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.