Home / 13,294.78-19,935.11-3,933.51

Finding the Fourth Proportional to 13,294.78, 19,935.11 and 3,933.51

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Solution

The fourth proportional to 13,294.78, 19,935.11 and 3,933.51 is: 5,898.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,294.78 : 19,935.11 = 3,933.51 : x
  2. Step 2: Convert to fraction form
    13,294.78/19,935.11 = 3,933.51/x
  3. Step 3: Cross multiply
    13,294.78x = 19,935.11 × 3,933.51
  4. Step 4: Simplify right side
    13,294.78x = 78,414,854.86
  5. Step 5: Solve for x
    x = 78,414,854.86/13,294.78
  6. Step 6: Final answer
    x = 5,898.17

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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.