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Finding the Fourth Proportional to 12,308.88, 18,463.19 and 8,350.34

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Solution

The fourth proportional to 12,308.88, 18,463.19 and 8,350.34 is: 12,525.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308.88 : 18,463.19 = 8,350.34 : x
  2. Step 2: Convert to fraction form
    12,308.88/18,463.19 = 8,350.34/x
  3. Step 3: Cross multiply
    12,308.88x = 18,463.19 × 8,350.34
  4. Step 4: Simplify right side
    12,308.88x = 154,173,930.74
  5. Step 5: Solve for x
    x = 154,173,930.74/12,308.88
  6. Step 6: Final answer
    x = 12,525.42

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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.