Home / 15,313.70-21,136.20-9,344.09

Finding the Fourth Proportional to 15,313.70, 21,136.20 and 9,344.09

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Solution

The fourth proportional to 15,313.70, 21,136.20 and 9,344.09 is: 12,896.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,313.70 : 21,136.20 = 9,344.09 : x
  2. Step 2: Convert to fraction form
    15,313.70/21,136.20 = 9,344.09/x
  3. Step 3: Cross multiply
    15,313.70x = 21,136.20 × 9,344.09
  4. Step 4: Simplify right side
    15,313.70x = 197,498,555.06
  5. Step 5: Solve for x
    x = 197,498,555.06/15,313.70
  6. Step 6: Final answer
    x = 12,896.85

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