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Finding the Fourth Proportional to 18,600.08, 27,900.08 and 4,749.08

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Solution

The fourth proportional to 18,600.08, 27,900.08 and 4,749.08 is: 7,123.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.08 : 27,900.08 = 4,749.08 : x
  2. Step 2: Convert to fraction form
    18,600.08/27,900.08 = 4,749.08/x
  3. Step 3: Cross multiply
    18,600.08x = 27,900.08 × 4,749.08
  4. Step 4: Simplify right side
    18,600.08x = 132,499,711.93
  5. Step 5: Solve for x
    x = 132,499,711.93/18,600.08
  6. Step 6: Final answer
    x = 7,123.61

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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.