Home / 19,997.64-29,986.43-6,665.94

Finding the Fourth Proportional to 19,997.64, 29,986.43 and 6,665.94

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Solution

The fourth proportional to 19,997.64, 29,986.43 and 6,665.94 is: 9,995.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.64 : 29,986.43 = 6,665.94 : x
  2. Step 2: Convert to fraction form
    19,997.64/29,986.43 = 6,665.94/x
  3. Step 3: Cross multiply
    19,997.64x = 29,986.43 × 6,665.94
  4. Step 4: Simplify right side
    19,997.64x = 199,887,709.86
  5. Step 5: Solve for x
    x = 199,887,709.86/19,997.64
  6. Step 6: Final answer
    x = 9,995.56

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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.