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Finding the Fourth Proportional to 18,192.79, 27,292.26 and 9,311.98

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Solution

The fourth proportional to 18,192.79, 27,292.26 and 9,311.98 is: 13,969.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,192.79 : 27,292.26 = 9,311.98 : x
  2. Step 2: Convert to fraction form
    18,192.79/27,292.26 = 9,311.98/x
  3. Step 3: Cross multiply
    18,192.79x = 27,292.26 × 9,311.98
  4. Step 4: Simplify right side
    18,192.79x = 254,144,979.27
  5. Step 5: Solve for x
    x = 254,144,979.27/18,192.79
  6. Step 6: Final answer
    x = 13,969.54

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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.