Home / 11,328.10-16,972.96-6,936.38

Finding the Fourth Proportional to 11,328.10, 16,972.96 and 6,936.38

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Solution

The fourth proportional to 11,328.10, 16,972.96 and 6,936.38 is: 10,392.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.10 : 16,972.96 = 6,936.38 : x
  2. Step 2: Convert to fraction form
    11,328.10/16,972.96 = 6,936.38/x
  3. Step 3: Cross multiply
    11,328.10x = 16,972.96 × 6,936.38
  4. Step 4: Simplify right side
    11,328.10x = 117,730,900.28
  5. Step 5: Solve for x
    x = 117,730,900.28/11,328.10
  6. Step 6: Final answer
    x = 10,392.82

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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.