Home / 13,656.80-20,491.32-6,632.96

Finding the Fourth Proportional to 13,656.80, 20,491.32 and 6,632.96

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Solution

The fourth proportional to 13,656.80, 20,491.32 and 6,632.96 is: 9,952.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.80 : 20,491.32 = 6,632.96 : x
  2. Step 2: Convert to fraction form
    13,656.80/20,491.32 = 6,632.96/x
  3. Step 3: Cross multiply
    13,656.80x = 20,491.32 × 6,632.96
  4. Step 4: Simplify right side
    13,656.80x = 135,918,105.91
  5. Step 5: Solve for x
    x = 135,918,105.91/13,656.80
  6. Step 6: Final answer
    x = 9,952.41

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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.