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Finding the Fourth Proportional to 18,172.24, 27,260.08 and 7,079.84

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Solution

The fourth proportional to 18,172.24, 27,260.08 and 7,079.84 is: 10,620.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.24 : 27,260.08 = 7,079.84 : x
  2. Step 2: Convert to fraction form
    18,172.24/27,260.08 = 7,079.84/x
  3. Step 3: Cross multiply
    18,172.24x = 27,260.08 × 7,079.84
  4. Step 4: Simplify right side
    18,172.24x = 192,997,004.79
  5. Step 5: Solve for x
    x = 192,997,004.79/18,172.24
  6. Step 6: Final answer
    x = 10,620.43

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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.