Home / 14,147.62-21,189.12-6,757.31

Finding the Fourth Proportional to 14,147.62, 21,189.12 and 6,757.31

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Solution

The fourth proportional to 14,147.62, 21,189.12 and 6,757.31 is: 10,120.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.62 : 21,189.12 = 6,757.31 : x
  2. Step 2: Convert to fraction form
    14,147.62/21,189.12 = 6,757.31/x
  3. Step 3: Cross multiply
    14,147.62x = 21,189.12 × 6,757.31
  4. Step 4: Simplify right side
    14,147.62x = 143,181,438.65
  5. Step 5: Solve for x
    x = 143,181,438.65/14,147.62
  6. Step 6: Final answer
    x = 10,120.53

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1.5x scale

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.