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Finding the Fourth Proportional to 8,563.93, 11,809.80 and 6,879.94

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Solution

The fourth proportional to 8,563.93, 11,809.80 and 6,879.94 is: 9,487.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,563.93 : 11,809.80 = 6,879.94 : x
  2. Step 2: Convert to fraction form
    8,563.93/11,809.80 = 6,879.94/x
  3. Step 3: Cross multiply
    8,563.93x = 11,809.80 × 6,879.94
  4. Step 4: Simplify right side
    8,563.93x = 81,250,685.89
  5. Step 5: Solve for x
    x = 81,250,685.89/8,563.93
  6. Step 6: Final answer
    x = 9,487.55

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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.