Home / 13,694.49-18,899.28-7,723.98

Finding the Fourth Proportional to 13,694.49, 18,899.28 and 7,723.98

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Solution

The fourth proportional to 13,694.49, 18,899.28 and 7,723.98 is: 10,659.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.49 : 18,899.28 = 7,723.98 : x
  2. Step 2: Convert to fraction form
    13,694.49/18,899.28 = 7,723.98/x
  3. Step 3: Cross multiply
    13,694.49x = 18,899.28 × 7,723.98
  4. Step 4: Simplify right side
    13,694.49x = 145,977,660.73
  5. Step 5: Solve for x
    x = 145,977,660.73/13,694.49
  6. Step 6: Final answer
    x = 10,659.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.