Home / 19,850.90-29,753.68-7,997.08

Finding the Fourth Proportional to 19,850.90, 29,753.68 and 7,997.08

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Solution

The fourth proportional to 19,850.90, 29,753.68 and 7,997.08 is: 11,986.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,850.90 : 29,753.68 = 7,997.08 : x
  2. Step 2: Convert to fraction form
    19,850.90/29,753.68 = 7,997.08/x
  3. Step 3: Cross multiply
    19,850.90x = 29,753.68 × 7,997.08
  4. Step 4: Simplify right side
    19,850.90x = 237,942,559.25
  5. Step 5: Solve for x
    x = 237,942,559.25/19,850.90
  6. Step 6: Final answer
    x = 11,986.49

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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.