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Finding the Fourth Proportional to 12,324.60, 18,476.10 and 7,396.20

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Solution

The fourth proportional to 12,324.60, 18,476.10 and 7,396.20 is: 11,087.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,324.60 : 18,476.10 = 7,396.20 : x
  2. Step 2: Convert to fraction form
    12,324.60/18,476.10 = 7,396.20/x
  3. Step 3: Cross multiply
    12,324.60x = 18,476.10 × 7,396.20
  4. Step 4: Simplify right side
    12,324.60x = 136,652,930.82
  5. Step 5: Solve for x
    x = 136,652,930.82/12,324.60
  6. Step 6: Final answer
    x = 11,087.82

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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.