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Finding the Fourth Proportional to 13,296, 18,342 and 10,646.76

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Solution

The fourth proportional to 13,296, 18,342 and 10,646.76 is: 14,687.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296 : 18,342 = 10,646.76 : x
  2. Step 2: Convert to fraction form
    13,296/18,342 = 10,646.76/x
  3. Step 3: Cross multiply
    13,296x = 18,342 × 10,646.76
  4. Step 4: Simplify right side
    13,296x = 195,282,871.92
  5. Step 5: Solve for x
    x = 195,282,871.92/13,296
  6. Step 6: Final answer
    x = 14,687.34

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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.