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Finding the Fourth Proportional to 18,011.77, 27,019.02 and 4,863.95

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Solution

The fourth proportional to 18,011.77, 27,019.02 and 4,863.95 is: 7,296.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,011.77 : 27,019.02 = 4,863.95 : x
  2. Step 2: Convert to fraction form
    18,011.77/27,019.02 = 4,863.95/x
  3. Step 3: Cross multiply
    18,011.77x = 27,019.02 × 4,863.95
  4. Step 4: Simplify right side
    18,011.77x = 131,419,162.33
  5. Step 5: Solve for x
    x = 131,419,162.33/18,011.77
  6. Step 6: Final answer
    x = 7,296.29

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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.