Home / 13,655.34-20,470.83-5,333.43

Finding the Fourth Proportional to 13,655.34, 20,470.83 and 5,333.43

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Solution

The fourth proportional to 13,655.34, 20,470.83 and 5,333.43 is: 7,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.34 : 20,470.83 = 5,333.43 : x
  2. Step 2: Convert to fraction form
    13,655.34/20,470.83 = 5,333.43/x
  3. Step 3: Cross multiply
    13,655.34x = 20,470.83 × 5,333.43
  4. Step 4: Simplify right side
    13,655.34x = 109,179,738.85
  5. Step 5: Solve for x
    x = 109,179,738.85/13,655.34
  6. Step 6: Final answer
    x = 7,995.39

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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.