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Finding the Fourth Proportional to 18,122.79, 27,192.02 and 9,808.68

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Solution

The fourth proportional to 18,122.79, 27,192.02 and 9,808.68 is: 14,717.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.79 : 27,192.02 = 9,808.68 : x
  2. Step 2: Convert to fraction form
    18,122.79/27,192.02 = 9,808.68/x
  3. Step 3: Cross multiply
    18,122.79x = 27,192.02 × 9,808.68
  4. Step 4: Simplify right side
    18,122.79x = 266,717,822.73
  5. Step 5: Solve for x
    x = 266,717,822.73/18,122.79
  6. Step 6: Final answer
    x = 14,717.26

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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.