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Finding the Fourth Proportional to 8,793.16, 13,089.29 and 8,661.94

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Solution

The fourth proportional to 8,793.16, 13,089.29 and 8,661.94 is: 12,893.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.16 : 13,089.29 = 8,661.94 : x
  2. Step 2: Convert to fraction form
    8,793.16/13,089.29 = 8,661.94/x
  3. Step 3: Cross multiply
    8,793.16x = 13,089.29 × 8,661.94
  4. Step 4: Simplify right side
    8,793.16x = 113,378,644.62
  5. Step 5: Solve for x
    x = 113,378,644.62/8,793.16
  6. Step 6: Final answer
    x = 12,893.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.