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Finding the Fourth Proportional to 18,152.51, 27,205.22 and 8,149.87

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Solution

The fourth proportional to 18,152.51, 27,205.22 and 8,149.87 is: 12,214.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,152.51 : 27,205.22 = 8,149.87 : x
  2. Step 2: Convert to fraction form
    18,152.51/27,205.22 = 8,149.87/x
  3. Step 3: Cross multiply
    18,152.51x = 27,205.22 × 8,149.87
  4. Step 4: Simplify right side
    18,152.51x = 221,718,861.83
  5. Step 5: Solve for x
    x = 221,718,861.83/18,152.51
  6. Step 6: Final answer
    x = 12,214.23

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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.