Home / 10,721.64-16,084.94-3,325.72

Finding the Fourth Proportional to 10,721.64, 16,084.94 and 3,325.72

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Solution

The fourth proportional to 10,721.64, 16,084.94 and 3,325.72 is: 4,989.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.64 : 16,084.94 = 3,325.72 : x
  2. Step 2: Convert to fraction form
    10,721.64/16,084.94 = 3,325.72/x
  3. Step 3: Cross multiply
    10,721.64x = 16,084.94 × 3,325.72
  4. Step 4: Simplify right side
    10,721.64x = 53,494,006.66
  5. Step 5: Solve for x
    x = 53,494,006.66/10,721.64
  6. Step 6: Final answer
    x = 4,989.35

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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.