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Finding the Fourth Proportional to 12,073.49, 18,122.53 and 8,325.51

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Solution

The fourth proportional to 12,073.49, 18,122.53 and 8,325.51 is: 12,496.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,073.49 : 18,122.53 = 8,325.51 : x
  2. Step 2: Convert to fraction form
    12,073.49/18,122.53 = 8,325.51/x
  3. Step 3: Cross multiply
    12,073.49x = 18,122.53 × 8,325.51
  4. Step 4: Simplify right side
    12,073.49x = 150,879,383.11
  5. Step 5: Solve for x
    x = 150,879,383.11/12,073.49
  6. Step 6: Final answer
    x = 12,496.75

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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.