Home / 13,655.80-20,489.82-6,631.96

Finding the Fourth Proportional to 13,655.80, 20,489.82 and 6,631.96

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Solution

The fourth proportional to 13,655.80, 20,489.82 and 6,631.96 is: 9,950.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.80 : 20,489.82 = 6,631.96 : x
  2. Step 2: Convert to fraction form
    13,655.80/20,489.82 = 6,631.96/x
  3. Step 3: Cross multiply
    13,655.80x = 20,489.82 × 6,631.96
  4. Step 4: Simplify right side
    13,655.80x = 135,887,666.65
  5. Step 5: Solve for x
    x = 135,887,666.65/13,655.80
  6. Step 6: Final answer
    x = 9,950.91

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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.