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Finding the Fourth Proportional to 12,065.53, 18,067.14 and 8,328.84

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Solution

The fourth proportional to 12,065.53, 18,067.14 and 8,328.84 is: 12,471.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,065.53 : 18,067.14 = 8,328.84 : x
  2. Step 2: Convert to fraction form
    12,065.53/18,067.14 = 8,328.84/x
  3. Step 3: Cross multiply
    12,065.53x = 18,067.14 × 8,328.84
  4. Step 4: Simplify right side
    12,065.53x = 150,478,318.32
  5. Step 5: Solve for x
    x = 150,478,318.32/12,065.53
  6. Step 6: Final answer
    x = 12,471.75

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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.