Home / 19,578.82-29,381.58-7,892.92

Finding the Fourth Proportional to 19,578.82, 29,381.58 and 7,892.92

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Solution

The fourth proportional to 19,578.82, 29,381.58 and 7,892.92 is: 11,844.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.82 : 29,381.58 = 7,892.92 : x
  2. Step 2: Convert to fraction form
    19,578.82/29,381.58 = 7,892.92/x
  3. Step 3: Cross multiply
    19,578.82x = 29,381.58 × 7,892.92
  4. Step 4: Simplify right side
    19,578.82x = 231,906,460.41
  5. Step 5: Solve for x
    x = 231,906,460.41/19,578.82
  6. Step 6: Final answer
    x = 11,844.76

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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.