Home / 13,694.49-20,543.81-4,331.39

Finding the Fourth Proportional to 13,694.49, 20,543.81 and 4,331.39

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Solution

The fourth proportional to 13,694.49, 20,543.81 and 4,331.39 is: 6,497.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.49 : 20,543.81 = 4,331.39 : x
  2. Step 2: Convert to fraction form
    13,694.49/20,543.81 = 4,331.39/x
  3. Step 3: Cross multiply
    13,694.49x = 20,543.81 × 4,331.39
  4. Step 4: Simplify right side
    13,694.49x = 88,983,128.82
  5. Step 5: Solve for x
    x = 88,983,128.82/13,694.49
  6. Step 6: Final answer
    x = 6,497.73

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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.