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Finding the Fourth Proportional to 8,778.72, 13,168.10 and 2,935.34

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Solution

The fourth proportional to 8,778.72, 13,168.10 and 2,935.34 is: 4,403.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.72 : 13,168.10 = 2,935.34 : x
  2. Step 2: Convert to fraction form
    8,778.72/13,168.10 = 2,935.34/x
  3. Step 3: Cross multiply
    8,778.72x = 13,168.10 × 2,935.34
  4. Step 4: Simplify right side
    8,778.72x = 38,652,770.14
  5. Step 5: Solve for x
    x = 38,652,770.14/8,778.72
  6. Step 6: Final answer
    x = 4,403.01

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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.