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Finding the Fourth Proportional to 18,266.77, 27,400.17 and 4,415.77

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Solution

The fourth proportional to 18,266.77, 27,400.17 and 4,415.77 is: 6,623.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.77 : 27,400.17 = 4,415.77 : x
  2. Step 2: Convert to fraction form
    18,266.77/27,400.17 = 4,415.77/x
  3. Step 3: Cross multiply
    18,266.77x = 27,400.17 × 4,415.77
  4. Step 4: Simplify right side
    18,266.77x = 120,992,745.36
  5. Step 5: Solve for x
    x = 120,992,745.36/18,266.77
  6. Step 6: Final answer
    x = 6,623.65

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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.