Home / 10,721.23-16,072.63-7,591.39

Finding the Fourth Proportional to 10,721.23, 16,072.63 and 7,591.39

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Solution

The fourth proportional to 10,721.23, 16,072.63 and 7,591.39 is: 11,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.23 : 16,072.63 = 7,591.39 : x
  2. Step 2: Convert to fraction form
    10,721.23/16,072.63 = 7,591.39/x
  3. Step 3: Cross multiply
    10,721.23x = 16,072.63 × 7,591.39
  4. Step 4: Simplify right side
    10,721.23x = 122,013,543.50
  5. Step 5: Solve for x
    x = 122,013,543.50/10,721.23
  6. Step 6: Final answer
    x = 11,380.56

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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.