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Finding the Fourth Proportional to 8,773.02, 13,156.94 and 4,769.78

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Solution

The fourth proportional to 8,773.02, 13,156.94 and 4,769.78 is: 7,153.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.02 : 13,156.94 = 4,769.78 : x
  2. Step 2: Convert to fraction form
    8,773.02/13,156.94 = 4,769.78/x
  3. Step 3: Cross multiply
    8,773.02x = 13,156.94 × 4,769.78
  4. Step 4: Simplify right side
    8,773.02x = 62,755,709.27
  5. Step 5: Solve for x
    x = 62,755,709.27/8,773.02
  6. Step 6: Final answer
    x = 7,153.26

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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.