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Finding the Fourth Proportional to 13,695, 20,551.01 and 8,768.18

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Solution

The fourth proportional to 13,695, 20,551.01 and 8,768.18 is: 13,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695 : 20,551.01 = 8,768.18 : x
  2. Step 2: Convert to fraction form
    13,695/20,551.01 = 8,768.18/x
  3. Step 3: Cross multiply
    13,695x = 20,551.01 × 8,768.18
  4. Step 4: Simplify right side
    13,695x = 180,194,954.86
  5. Step 5: Solve for x
    x = 180,194,954.86/13,695
  6. Step 6: Final answer
    x = 13,157.72

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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.