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Finding the Fourth Proportional to 18,113.79, 27,150.03 and 8,230.98

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Solution

The fourth proportional to 18,113.79, 27,150.03 and 8,230.98 is: 12,337.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,113.79 : 27,150.03 = 8,230.98 : x
  2. Step 2: Convert to fraction form
    18,113.79/27,150.03 = 8,230.98/x
  3. Step 3: Cross multiply
    18,113.79x = 27,150.03 × 8,230.98
  4. Step 4: Simplify right side
    18,113.79x = 223,471,353.93
  5. Step 5: Solve for x
    x = 223,471,353.93/18,113.79
  6. Step 6: Final answer
    x = 12,337.08

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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.