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Finding the Fourth Proportional to 12,544.52, 17,311.63 and 6,879.78

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Solution

The fourth proportional to 12,544.52, 17,311.63 and 6,879.78 is: 9,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,544.52 : 17,311.63 = 6,879.78 : x
  2. Step 2: Convert to fraction form
    12,544.52/17,311.63 = 6,879.78/x
  3. Step 3: Cross multiply
    12,544.52x = 17,311.63 × 6,879.78
  4. Step 4: Simplify right side
    12,544.52x = 119,100,205.84
  5. Step 5: Solve for x
    x = 119,100,205.84/12,544.52
  6. Step 6: Final answer
    x = 9,494.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.