Home / 8,653.64-12,977.01-3,105.95

Finding the Fourth Proportional to 8,653.64, 12,977.01 and 3,105.95

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Solution

The fourth proportional to 8,653.64, 12,977.01 and 3,105.95 is: 4,657.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,653.64 : 12,977.01 = 3,105.95 : x
  2. Step 2: Convert to fraction form
    8,653.64/12,977.01 = 3,105.95/x
  3. Step 3: Cross multiply
    8,653.64x = 12,977.01 × 3,105.95
  4. Step 4: Simplify right side
    8,653.64x = 40,305,879.32
  5. Step 5: Solve for x
    x = 40,305,879.32/8,653.64
  6. Step 6: Final answer
    x = 4,657.68

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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.