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Finding the Fourth Proportional to 18,015.44, 27,020.01 and 8,152.40

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Solution

The fourth proportional to 18,015.44, 27,020.01 and 8,152.40 is: 12,227.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.44 : 27,020.01 = 8,152.40 : x
  2. Step 2: Convert to fraction form
    18,015.44/27,020.01 = 8,152.40/x
  3. Step 3: Cross multiply
    18,015.44x = 27,020.01 × 8,152.40
  4. Step 4: Simplify right side
    18,015.44x = 220,277,929.52
  5. Step 5: Solve for x
    x = 220,277,929.52/18,015.44
  6. Step 6: Final answer
    x = 12,227.17

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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.