Home / 12,356.72-18,537.44-4,961.77

Finding the Fourth Proportional to 12,356.72, 18,537.44 and 4,961.77

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Solution

The fourth proportional to 12,356.72, 18,537.44 and 4,961.77 is: 7,443.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.72 : 18,537.44 = 4,961.77 : x
  2. Step 2: Convert to fraction form
    12,356.72/18,537.44 = 4,961.77/x
  3. Step 3: Cross multiply
    12,356.72x = 18,537.44 × 4,961.77
  4. Step 4: Simplify right side
    12,356.72x = 91,978,574.70
  5. Step 5: Solve for x
    x = 91,978,574.70/12,356.72
  6. Step 6: Final answer
    x = 7,443.61

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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.