Home / 11,428.63-17,143.32-3,932.11

Finding the Fourth Proportional to 11,428.63, 17,143.32 and 3,932.11

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Solution

The fourth proportional to 11,428.63, 17,143.32 and 3,932.11 is: 5,898.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.63 : 17,143.32 = 3,932.11 : x
  2. Step 2: Convert to fraction form
    11,428.63/17,143.32 = 3,932.11/x
  3. Step 3: Cross multiply
    11,428.63x = 17,143.32 × 3,932.11
  4. Step 4: Simplify right side
    11,428.63x = 67,409,420.01
  5. Step 5: Solve for x
    x = 67,409,420.01/11,428.63
  6. Step 6: Final answer
    x = 5,898.29

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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.