Home / 18,428.31-27,647.33-9,660.87

Finding the Fourth Proportional to 18,428.31, 27,647.33 and 9,660.87

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Solution

The fourth proportional to 18,428.31, 27,647.33 and 9,660.87 is: 14,493.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.31 : 27,647.33 = 9,660.87 : x
  2. Step 2: Convert to fraction form
    18,428.31/27,647.33 = 9,660.87/x
  3. Step 3: Cross multiply
    18,428.31x = 27,647.33 × 9,660.87
  4. Step 4: Simplify right side
    18,428.31x = 267,097,212.67
  5. Step 5: Solve for x
    x = 267,097,212.67/18,428.31
  6. Step 6: Final answer
    x = 14,493.85

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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.